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70349194161 = 32181257168037
BaseRepresentation
bin100000110000100100…
…0111000001110110001
320201120202102100012200
41001201020320032301
52123033343203121
652152403213413
75040214166301
oct1014110701661
9221522370180
1070349194161
1127920316894
1211773977269
1368318aab0c
143595153601
151c6b0daa26
hex10612383b1

70349194161 has 24 divisors (see below), whose sum is σ = 102575100264. Its totient is φ = 46458593280.

The previous prime is 70349194141. The next prime is 70349194169. The reversal of 70349194161 is 16149194307.

It is a happy number.

70349194161 is a `hidden beast` number, since 70 + 3 + 491 + 94 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18856507761 + 51492686400 = 137319^2 + 226920^2 .

It is not a de Polignac number, because 70349194161 - 210 = 70349193137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70349194169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334635 + ... + 502671.

It is an arithmetic number, because the mean of its divisors is an integer number (4273962511).

Almost surely, 270349194161 is an apocalyptic number.

It is an amenable number.

70349194161 is a deficient number, since it is larger than the sum of its proper divisors (32225906103).

70349194161 is a wasteful number, since it uses less digits than its factorization.

70349194161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168481 (or 168478 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 70349194161 in words is "seventy billion, three hundred forty-nine million, one hundred ninety-four thousand, one hundred sixty-one".

Divisors: 1 3 9 181 257 543 771 1629 2313 46517 139551 168037 418653 504111 1512333 30414697 43185509 91244091 129556527 273732273 388669581 7816577129 23449731387 70349194161