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31345333023030 = 23513389206613493
BaseRepresentation
bin1110010000010001001110…
…11100001011000100110110
311002222120210011010101111020
413020020213130023010312
513102030220223214110
6150355502554522010
76413424400404525
oct710104734130466
9132876704111436
1031345333023030
119a95532358434
123622b28736306
131464b10438570
147a519d4d24bc
1539556d9c0d70
hex1c822770b136

31345333023030 has 64 divisors (see below), whose sum is σ = 81223896761280. Its totient is φ = 7695939350016.

The previous prime is 31345333022987. The next prime is 31345333023061. The reversal of 31345333023030 is 3032033354313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31345333022982 and 31345333023000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103155037 + ... + 103458456.

It is an arithmetic number, because the mean of its divisors is an integer number (1269123386895).

Almost surely, 231345333023030 is an apocalyptic number.

31345333023030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31345333023030 is an abundant number, since it is smaller than the sum of its proper divisors (49878563738250).

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

31345333023030 is a wasteful number, since it uses less digits than its factorization.

31345333023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206613905.

The product of its (nonzero) digits is 87480, while the sum is 33.

Adding to 31345333023030 its reverse (3032033354313), we get a palindrome (34377366377343).

The spelling of 31345333023030 in words is "thirty-one trillion, three hundred forty-five billion, three hundred thirty-three million, twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 389 390 778 1167 1945 2334 3890 5057 5835 10114 11670 15171 25285 30342 50570 75855 151710 206613493 413226986 619840479 1033067465 1239680958 2066134930 2685975409 3099202395 5371950818 6198404790 8057926227 13429877045 16115852454 26859754090 40289631135 80372648777 80579262270 160745297554 241117946331 401863243885 482235892662 803726487770 1044844434101 1205589731655 2089688868202 2411179463310 3134533302303 5224222170505 6269066604606 10448444341010 15672666511515 31345333023030