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206159239972095 = 3519171957849903
BaseRepresentation
bin101110111000000000110000…
…010001000000010011111111
31000000221122000220021100011220
4232320000300101000103333
5204010203110413101340
62010244125233444423
761265341103256264
oct5670006021002377
91000848026240156
10206159239972095
115a763708449723
121b157060410713
138b0596b28c627
1438ca23640526b
1518c7a1cdd5ed0
hexbb80304404ff

206159239972095 has 16 divisors (see below), whose sum is σ = 331581772357632. Its totient is φ = 109375931851040.

The previous prime is 206159239972057. The next prime is 206159239972157. The reversal of 206159239972095 is 590279932951602.

It is not a de Polignac number, because 206159239972095 - 27 = 206159239971967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35978922087 + ... + 35978927816.

It is an arithmetic number, because the mean of its divisors is an integer number (20723860772352).

Almost surely, 2206159239972095 is an apocalyptic number.

206159239972095 is a deficient number, since it is larger than the sum of its proper divisors (125422532385537).

206159239972095 is a wasteful number, since it uses less digits than its factorization.

206159239972095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71957850102.

The product of its (nonzero) digits is 165337200, while the sum is 69.

The spelling of 206159239972095 in words is "two hundred six trillion, one hundred fifty-nine billion, two hundred thirty-nine million, nine hundred seventy-two thousand, ninety-five".

Divisors: 1 3 5 15 191 573 955 2865 71957849903 215873549709 359789249515 1079367748545 13743949331473 41231847994419 68719746657365 206159239972095