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205675912 = 231319104087
BaseRepresentation
bin11000100001001…
…01110110001000
3112100000102022101
430100211312020
5410123112122
632224203144
75045134141
oct1420456610
9470012271
10205675912
11a610a3a2
1258a694b4
13337c3930
141d45cac8
15130cb027
hexc425d88

205675912 has 32 divisors (see below), whose sum is σ = 437169600. Its totient is φ = 89930304.

The previous prime is 205675903. The next prime is 205675927. The reversal of 205675912 is 219576502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50068 + ... + 54019.

It is an arithmetic number, because the mean of its divisors is an integer number (13661550).

Almost surely, 2205675912 is an apocalyptic number.

It is an amenable number.

205675912 is an abundant number, since it is smaller than the sum of its proper divisors (231493688).

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

205675912 is a wasteful number, since it uses less digits than its factorization.

205675912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104125 (or 104121 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 205675912 is about 14341.4055099213. The cubic root of 205675912 is about 590.2841798669.

The spelling of 205675912 in words is "two hundred five million, six hundred seventy-five thousand, nine hundred twelve".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 152 247 494 988 1976 104087 208174 416348 832696 1353131 1977653 2706262 3955306 5412524 7910612 10825048 15821224 25709489 51418978 102837956 205675912