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91357000874 = 21631507718587
BaseRepresentation
bin101010100010101001…
…1010011010010101010
322201210211022111100222
41111011103103102222
52444044343011444
6105545133330042
76412624460216
oct1250523232252
9281724274328
1091357000874
1135820710a17
1215857336922
1387cbcc7089
1445c9219946
15259a57aeee
hex15454d34aa

91357000874 has 16 divisors (see below), whose sum is σ = 137892773088. Its totient is φ = 45392810832.

The previous prime is 91357000843. The next prime is 91357000879. The reversal of 91357000874 is 47800075319.

It is a super-2 number, since 2×913570008742 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91357000879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4905809 + ... + 4924395.

It is an arithmetic number, because the mean of its divisors is an integer number (8618298318).

Almost surely, 291357000874 is an apocalyptic number.

91357000874 is a deficient number, since it is larger than the sum of its proper divisors (46535772214).

91357000874 is a wasteful number, since it uses less digits than its factorization.

91357000874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33829.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 91357000874 in words is "ninety-one billion, three hundred fifty-seven million, eight hundred seventy-four", and thus it is an aban number.

Divisors: 1 2 163 326 15077 18587 30154 37174 2457551 3029681 4915102 6059362 280236199 560472398 45678500437 91357000874