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104905028459 = 71117281928429
BaseRepresentation
bin110000110110011010…
…0111011001101101011
3101000210000022121100102
41201230310323031223
53204321141402314
6120105342500015
710402434013010
oct1415464731553
9330700277312
10104905028459
1140543176630
12183b859460b
139b7aa9854a
14511267d707
152adeb815de
hex186cd3b36b

104905028459 has 32 divisors (see below), whose sum is σ = 138538252800. Its totient is φ = 76905699840.

The previous prime is 104905028429. The next prime is 104905028479. The reversal of 104905028459 is 954820509401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 104905028459 - 28 = 104905028203 is a prime.

It is a super-2 number, since 2×1049050284592 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104905028429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3675857 + ... + 3704285.

It is an arithmetic number, because the mean of its divisors is an integer number (4329320400).

Almost surely, 2104905028459 is an apocalyptic number.

104905028459 is a deficient number, since it is larger than the sum of its proper divisors (33633224341).

104905028459 is a wasteful number, since it uses less digits than its factorization.

104905028459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31283.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 104905028459 in words is "one hundred four billion, nine hundred five million, twenty-eight thousand, four hundred fifty-nine".

Divisors: 1 7 11 17 77 119 187 1309 2819 19733 28429 31009 47923 199003 217063 312719 335461 483293 527153 2189033 3383051 3690071 5316223 37213561 80141351 560989457 881554861 1362402967 6170884027 9536820769 14986432637 104905028459