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230857050978 = 232232272456501
BaseRepresentation
bin1101011100000000100…
…1110000101101100010
3211001212211021021210100
43113000021300231202
512240243401112403
6254015415443230
722451565361521
oct3270011605542
9731784237710
10230857050978
11899a6872324
12388a9686516
1318a01120a18
14b2602a64b8
1560124442a3
hex35c0270b62

230857050978 has 48 divisors (see below), whose sum is σ = 524237178816. Its totient is φ = 73282308000.

The previous prime is 230857050971. The next prime is 230857051037. The reversal of 230857050978 is 879050758032.

It is not an unprimeable number, because it can be changed into a prime (230857050971) 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, 1134273 + ... + 1322228.

It is an arithmetic number, because the mean of its divisors is an integer number (10921607892).

Almost surely, 2230857050978 is an apocalyptic number.

230857050978 is an abundant number, since it is smaller than the sum of its proper divisors (293380127838).

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

230857050978 is a wasteful number, since it uses less digits than its factorization.

230857050978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456759 (or 2456756 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 230857050978 in words is "two hundred thirty billion, eight hundred fifty-seven million, fifty thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 227 414 454 681 1362 2043 4086 5221 10442 15663 31326 46989 93978 2456501 4913002 7369503 14739006 22108509 44217018 56499523 112999046 169498569 338997138 508495707 557625727 1016991414 1115251454 1672877181 3345754362 5018631543 10037263086 12825391721 25650783442 38476175163 76952350326 115428525489 230857050978