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204258925879 = 3189139952919
BaseRepresentation
bin1011111000111011000…
…1111101110100110111
3201112020011012112110221
42332032301331310313
511321310241112004
6233500225355211
720520504136351
oct2761661756467
9645204175427
10204258925879
1179697925258
1233705a98b07
1316352789c68
149c599960d1
1554a72e3354
hex2f8ec7dd37

204258925879 has 16 divisors (see below), whose sum is σ = 213373440000. Its totient is φ = 195305520960.

The previous prime is 204258925859. The next prime is 204258925933. The reversal of 204258925879 is 978529852402.

It is a cyclic number.

It is not a de Polignac number, because 204258925879 - 25 = 204258925847 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 (204258925859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3833382 + ... + 3886300.

It is an arithmetic number, because the mean of its divisors is an integer number (13335840000).

Almost surely, 2204258925879 is an apocalyptic number.

204258925879 is a deficient number, since it is larger than the sum of its proper divisors (9114514121).

204258925879 is a wasteful number, since it uses less digits than its factorization.

204258925879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54438.

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 204258925879 in words is "two hundred four billion, two hundred fifty-eight million, nine hundred twenty-five thousand, eight hundred seventy-nine".

Divisors: 1 31 89 1399 2759 43369 52919 124511 1640489 3859841 4709791 74033681 146003521 2295044111 6588997609 204258925879