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105997268 = 221310918701
BaseRepresentation
bin1100101000101…
…10001111010100
321101110012220202
412110112033110
5204113403033
614303520032
72424650636
oct624261724
9241405822
10105997268
1154918353
122b5b9018
1318c634a0
1410112a56
15948b8e8
hex65163d4

105997268 has 24 divisors (see below), whose sum is σ = 201607560. Its totient is φ = 48470400.

The previous prime is 105997253. The next prime is 105997289. The reversal of 105997268 is 862799501.

It can be written as a sum of positive squares in 4 ways, for example, as 1507984 + 104489284 = 1228^2 + 10222^2 .

It is a super-2 number, since 2×1059972682 = 22470841646927648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3683 + ... + 15018.

It is an arithmetic number, because the mean of its divisors is an integer number (8400315).

Almost surely, 2105997268 is an apocalyptic number.

It is an amenable number.

105997268 is a deficient number, since it is larger than the sum of its proper divisors (95610292).

105997268 is a wasteful number, since it uses less digits than its factorization.

105997268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827 (or 18825 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 105997268 is about 10295.4974624833. The cubic root of 105997268 is about 473.2582831923.

The spelling of 105997268 in words is "one hundred five million, nine hundred ninety-seven thousand, two hundred sixty-eight".

Divisors: 1 2 4 13 26 52 109 218 436 1417 2834 5668 18701 37402 74804 243113 486226 972452 2038409 4076818 8153636 26499317 52998634 105997268