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31102302312300 = 223524312923186569
BaseRepresentation
bin1110001001001100100011…
…01011100101011101101100
311002010100110220222002221210
413010212101223211131230
513034040003342443200
6150052111143154420
76360032021425422
oct704462153453554
9132110426862853
1031102302312300
119a0145990238a
1235a3a02145a10
131447c1c1bbc9b
14797506525112
1538e097956650
hex1c4991ae576c

31102302312300 has 144 divisors (see below), whose sum is σ = 92089722130560. Its totient is φ = 8100394498560.

The previous prime is 31102302312281. The next prime is 31102302312313. The reversal of 31102302312300 is 321320320113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166613416 + ... + 166799984.

It is an arithmetic number, because the mean of its divisors is an integer number (639511959240).

Almost surely, 231102302312300 is an apocalyptic number.

31102302312300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31102302312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46044861065280).

31102302312300 is an abundant number, since it is smaller than the sum of its proper divisors (60987419818260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31102302312300 is a wasteful number, since it uses less digits than its factorization.

31102302312300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199552 (or 199545 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31102302312300 its reverse (321320320113), we get a palindrome (31423622632413).

The spelling of 31102302312300 in words is "thirty-one trillion, one hundred two billion, three hundred two million, three hundred twelve thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 43 50 60 75 86 100 129 150 172 215 258 300 430 516 645 860 1075 1290 2150 2580 3225 4300 6450 12900 12923 25846 38769 51692 64615 77538 129230 155076 186569 193845 258460 323075 373138 387690 555689 559707 646150 746276 775380 932845 969225 1111378 1119414 1292300 1667067 1865690 1938450 2222756 2238828 2778445 2798535 3334134 3731380 3876900 4664225 5556890 5597070 6668268 8022467 8335335 9328450 11113780 11194140 13892225 13992675 16044934 16670670 18656900 24067401 27784450 27985350 32089868 33341340 40112335 41676675 48134802 55568900 55970700 80224670 83353350 96269604 120337005 160449340 166706700 200561675 240674010 401123350 481348020 601685025 802246700 1203370050 2406740100 2411031187 4822062374 7233093561 9644124748 12055155935 14466187122 24110311870 28932374244 36165467805 48220623740 60275779675 72330935610 103674341041 120551559350 144661871220 180827339025 207348682082 241103118700 311023023123 361654678050 414697364164 518371705205 622046046246 723309356100 1036743410410 1244092092492 1555115115615 2073486820820 2591858526025 3110230231230 5183717052050 6220460462460 7775575578075 10367434104100 15551151156150 31102302312300