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230856357687397 = 1323058674466039
BaseRepresentation
bin110100011111011001101111…
…001100011011000001100101
31010021101122121111101201012121
4310133121233030123001211
5220224322310031444042
62134553540245545541
766424551516162421
oct6437315714330145
91107348544351177
10230856357687397
11676156a4557852
1221a856131152b1
139ba787962b500
144101716183b81
151ba5184c3e367
hexd1f66f31b065

230856357687397 has 12 divisors (see below), whose sum is σ = 249981426257760. Its totient is φ = 213097431909648.

The previous prime is 230856357687377. The next prime is 230856357687443. The reversal of 230856357687397 is 793786753658032.

It is not a de Polignac number, because 230856357687397 - 247 = 90118869332069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230856357687317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49458504 + ... + 53924542.

It is an arithmetic number, because the mean of its divisors is an integer number (20831785521480).

Almost surely, 2230856357687397 is an apocalyptic number.

It is an amenable number.

230856357687397 is a deficient number, since it is larger than the sum of its proper divisors (19125068570363).

230856357687397 is a wasteful number, since it uses less digits than its factorization.

230856357687397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771932 (or 4771919 counting only the distinct ones).

The product of its (nonzero) digits is 9601804800, while the sum is 79.

The spelling of 230856357687397 in words is "two hundred thirty trillion, eight hundred fifty-six billion, three hundred fifty-seven million, six hundred eighty-seven thousand, three hundred ninety-seven".

Divisors: 1 13 169 305867 3976271 4466039 51691523 58058507 754760591 1366013950813 17758181360569 230856357687397