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11902973486915 = 5717194324485921
BaseRepresentation
bin1010110100110110000010…
…0000011010011101000011
31120010220122200120112202202
42231031200200122131003
53030004242203040130
641152052303103415
72335650531163040
oct255154040323503
946126580515682
1011902973486915
11387a028250505
121402a618a1b6b
136845a3c40874
142d216d8221c7
15159954c8e145
hexad36081a743

11902973486915 has 64 divisors (see below), whose sum is σ = 18617136215040. Its totient is φ = 7108360519680.

The previous prime is 11902973486903. The next prime is 11902973486917. The reversal of 11902973486915 is 51968437920911.

It is not a de Polignac number, because 11902973486915 - 222 = 11902969292611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11902973486917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11756846 + ... + 12729075.

It is an arithmetic number, because the mean of its divisors is an integer number (290892753360).

It is a 1-persistent number, because it is pandigital, but 2⋅11902973486915 = 23805946973830 is not.

Almost surely, 211902973486915 is an apocalyptic number.

11902973486915 is a deficient number, since it is larger than the sum of its proper divisors (6714162728125).

11902973486915 is a wasteful number, since it uses less digits than its factorization.

11902973486915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24486012.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 11902973486915 in words is "eleven trillion, nine hundred two billion, nine hundred seventy-three million, four hundred eighty-six thousand, nine hundred fifteen".

Divisors: 1 5 7 17 19 35 43 85 95 119 133 215 301 323 595 665 731 817 1505 1615 2261 3655 4085 5117 5719 11305 13889 25585 28595 69445 97223 486115 24485921 122429605 171401447 416260657 465232499 857007235 1052894603 2081303285 2326162495 2913824599 3256627493 5264473015 7370262221 7908952483 14569122995 16283137465 17899208251 20004997457 36851311105 39544762415 55362667381 89496041255 100024987285 125294457757 140034982199 276813336905 340084956769 626472288785 700174910995 1700424783845 2380594697383 11902973486915