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94131570931 = 23291061133013
BaseRepresentation
bin101011110101010101…
…1011100100011110011
322222222012011020221221
41113222223130203303
53020240140232211
6111124330125511
76541445102566
oct1275253344363
9288865136857
1094131570931
1136a148aa522
12162b0580897
138b51a8c4c8
1447ad9004dd
1526ade40c71
hex15eaadc8f3

94131570931 has 16 divisors (see below), whose sum is σ = 101707824960. Its totient is φ = 86851515520.

The previous prime is 94131570917. The next prime is 94131570991. The reversal of 94131570931 is 13907513149.

It is a cyclic number.

It is not a de Polignac number, because 94131570931 - 29 = 94131570419 is a prime.

It is a super-4 number, since 4×941315709314 (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94131570991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641181 + ... + 774193.

It is an arithmetic number, because the mean of its divisors is an integer number (6356739060).

Almost surely, 294131570931 is an apocalyptic number.

94131570931 is a deficient number, since it is larger than the sum of its proper divisors (7576254029).

94131570931 is a wasteful number, since it uses less digits than its factorization.

94131570931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134126.

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 94131570931 in words is "ninety-four billion, one hundred thirty-one million, five hundred seventy thousand, nine hundred thirty-one".

Divisors: 1 23 29 667 1061 24403 30769 133013 707687 3059299 3857377 88719671 141126793 3245916239 4092676997 94131570931