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230331202002 = 232115919716761
BaseRepresentation
bin1101011010000011001…
…1110011100111010010
3211000112011210101121100
43112200303303213102
512233204241431002
6253451313005230
722432551625236
oct3264063634722
9730464711540
10230331202002
1189756a601a0
1238781553816
13189491b8195
14b2105025c6
155ed11c211c
hex35a0cf39d2

230331202002 has 48 divisors (see below), whose sum is σ = 553646676960. Its totient is φ = 68614324800.

The previous prime is 230331201967. The next prime is 230331202007. The reversal of 230331202002 is 200202133032.

It is a happy number.

It is a super-2 number, since 2×2303312020022 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (230331202007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9846699 + ... + 9870062.

It is an arithmetic number, because the mean of its divisors is an integer number (11534305770).

Almost surely, 2230331202002 is an apocalyptic number.

230331202002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

230331202002 is an abundant number, since it is smaller than the sum of its proper divisors (323315474958).

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

230331202002 is a wasteful number, since it uses less digits than its factorization.

230331202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716839 (or 19716836 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 230331202002 its reverse (200202133032), we get a palindrome (430533335034).

The spelling of 230331202002 in words is "two hundred thirty billion, three hundred thirty-one million, two hundred two thousand, two".

Divisors: 1 2 3 6 9 11 18 22 33 59 66 99 118 177 198 354 531 649 1062 1298 1947 3894 5841 11682 19716761 39433522 59150283 118300566 177450849 216884371 354901698 433768742 650653113 1163288899 1301306226 1951959339 2326577798 3489866697 3903918678 6979733394 10469600091 12796177889 20939200182 25592355778 38388533667 76777067334 115165601001 230331202002