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230723665215 = 3523668764247
BaseRepresentation
bin1101011011100000110…
…0111011110100111111
3211001112112021120220220
43112320030323310333
512240010224241330
6253554252512423
722445355536661
oct3267014736477
9731475246826
10230723665215
118993854865a
1238870a7b713
13189ac5bb134
14b24a6a4531
156005897710
hex35b833bd3f

230723665215 has 16 divisors (see below), whose sum is σ = 385208206848. Its totient is φ = 117702507296.

The previous prime is 230723665163. The next prime is 230723665231. The reversal of 230723665215 is 512566327032.

It is a cyclic number.

It is not a de Polignac number, because 230723665215 - 27 = 230723665087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334381779 + ... + 334382468.

It is an arithmetic number, because the mean of its divisors is an integer number (24075512928).

Almost surely, 2230723665215 is an apocalyptic number.

230723665215 is a deficient number, since it is larger than the sum of its proper divisors (154484541633).

230723665215 is a wasteful number, since it uses less digits than its factorization.

230723665215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668764278.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 230723665215 in words is "two hundred thirty billion, seven hundred twenty-three million, six hundred sixty-five thousand, two hundred fifteen".

Divisors: 1 3 5 15 23 69 115 345 668764247 2006292741 3343821235 10031463705 15381577681 46144733043 76907888405 230723665215