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11875164993 = 321319462777
BaseRepresentation
bin10110000111101000…
…01010001101000001
31010122121012212220200
423003310022031001
5143310020234433
65242205555413
7600164144166
oct130364121501
933577185820
1011875164993
11504424824a
122374b75b69
131173336c63
1480920406d
15497812613
hex2c3d0a341

11875164993 has 6 divisors (see below), whose sum is σ = 17153016114. Its totient is φ = 7916776656.

The previous prime is 11875164979. The next prime is 11875165007. The reversal of 11875164993 is 39946157811.

11875164993 is a `hidden beast` number, since 1 + 1 + 87 + 516 + 49 + 9 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (11875164979) and next prime (11875165007).

It can be written as a sum of positive squares in only one way, i.e., 11809603584 + 65561409 = 108672^2 + 8097^2 .

It is not a de Polignac number, because 11875164993 - 28 = 11875164737 is a prime.

It is a super-2 number, since 2×118751649932 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11875164943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659731380 + ... + 659731397.

It is an arithmetic number, because the mean of its divisors is an integer number (2858836019).

Almost surely, 211875164993 is an apocalyptic number.

It is an amenable number.

11875164993 is a deficient number, since it is larger than the sum of its proper divisors (5277851121).

11875164993 is a wasteful number, since it uses less digits than its factorization.

11875164993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319462783 (or 1319462780 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 11875164993 in words is "eleven billion, eight hundred seventy-five million, one hundred sixty-four thousand, nine hundred ninety-three".

Divisors: 1 3 9 1319462777 3958388331 11875164993