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97107128 = 2317312743
BaseRepresentation
bin1011100100110…
…11110010111000
320202201112221022
411302123302320
5144324412003
613345202012
72256253106
oct562336270
9222645838
1097107128
114a8a6028
1228630308
131716cb51
14cc7ac76
1587d2738
hex5c9bcb8

97107128 has 48 divisors (see below), whose sum is σ = 199473840. Its totient is φ = 44163840.

The previous prime is 97107113. The next prime is 97107133. The reversal of 97107128 is 82170179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130325 + ... + 131067.

It is an arithmetic number, because the mean of its divisors is an integer number (4155705).

Almost surely, 297107128 is an apocalyptic number.

It is an amenable number.

97107128 is an abundant number, since it is smaller than the sum of its proper divisors (102366712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97107128 is a wasteful number, since it uses less digits than its factorization.

97107128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 97107128 is about 9854.2949012093. The cubic root of 97107128 is about 459.6391751393.

The spelling of 97107128 in words is "ninety-seven million, one hundred seven thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 743 961 1054 1486 1922 2108 2972 3844 4216 5944 7688 12631 16337 23033 25262 32674 46066 50524 65348 92132 101048 130696 184264 391561 714023 783122 1428046 1566244 2856092 3132488 5712184 12138391 24276782 48553564 97107128