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31230000200 = 2352744415023
BaseRepresentation
bin11101000101011100…
…111111110001001000
32222121110202101110002
4131011130333301020
51002424340001300
622202531142132
72153623423160
oct350534776110
988543671402
1031230000200
1112276580423
126076a44948
132c39161679
1417239475a0
15c2badd5d5
hex74573fc48

31230000200 has 96 divisors (see below), whose sum is σ = 83017781760. Its totient is φ = 10702886400.

The previous prime is 31230000187. The next prime is 31230000209. The reversal of 31230000200 is 200003213.

It is not an unprimeable number, because it can be changed into a prime (31230000209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6214889 + ... + 6219911.

It is an arithmetic number, because the mean of its divisors is an integer number (864768560).

Almost surely, 231230000200 is an apocalyptic number.

It is an amenable number.

31230000200 is an abundant number, since it is smaller than the sum of its proper divisors (51787781560).

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

31230000200 is a wasteful number, since it uses less digits than its factorization.

31230000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487 (or 9478 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 31230000200 its reverse (200003213), we get a palindrome (31430003413).

The spelling of 31230000200 in words is "thirty-one billion, two hundred thirty million, two hundred", and thus it is an aban number.

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 4441 5023 8882 10046 17764 20092 22205 25115 31087 35161 35528 40184 44410 50230 62174 70322 88820 100460 111025 124348 125575 140644 155435 175805 177640 200920 222050 248696 251150 281288 310870 351610 444100 502300 621740 703220 777175 879025 888200 1004600 1243480 1406440 1554350 1758050 3108700 3516100 6217400 7032200 22307143 44614286 89228572 111535715 156150001 178457144 223071430 312300002 446142860 557678575 624600004 780750005 892285720 1115357150 1249200008 1561500010 2230714300 3123000020 3903750025 4461428600 6246000040 7807500050 15615000100 31230000200