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206136971382 = 23311108263287
BaseRepresentation
bin1011111111111010111…
…0001001000001110110
3201201002001002010120210
42333332232021001312
511334132031041012
6234410434410250
720615160226566
oct2777656110166
9651061063523
10206136971382
117a470a45681
1233b4aa30986
13165918a48a4
149d97186da6
15556711623c
hex2ffeb89076

206136971382 has 16 divisors (see below), whose sum is σ = 425573102592. Its totient is φ = 66495797160.

The previous prime is 206136971347. The next prime is 206136971419. The reversal of 206136971382 is 283179631602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554131458 + ... + 554131829.

It is an arithmetic number, because the mean of its divisors is an integer number (26598318912).

Almost surely, 2206136971382 is an apocalyptic number.

206136971382 is an abundant number, since it is smaller than the sum of its proper divisors (219436131210).

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

206136971382 is a wasteful number, since it uses less digits than its factorization.

206136971382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108263323.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 206136971382 in words is "two hundred six billion, one hundred thirty-six million, nine hundred seventy-one thousand, three hundred eighty-two".

Divisors: 1 2 3 6 31 62 93 186 1108263287 2216526574 3324789861 6649579722 34356161897 68712323794 103068485691 206136971382