Base | Representation |
---|---|
bin | 10101100010101110… |
… | …011110111101001111 |
3 | 2012201001102011011100 |
4 | 111202232132331033 |
5 | 334333041022241 |
6 | 14343141354143 |
7 | 1446132602004 |
oct | 254256367517 |
9 | 65631364140 |
10 | 23131189071 |
11 | 989aa53791 |
12 | 4596708953 |
13 | 2248302c33 |
14 | 11960bb8ab |
15 | 905ac59b6 |
hex | 562b9ef4f |
23131189071 has 6 divisors (see below), whose sum is σ = 33411717560. Its totient is φ = 15420792708.
The previous prime is 23131189051. The next prime is 23131189087. The reversal of 23131189071 is 17098113132.
It is not a de Polignac number, because 23131189071 - 221 = 23129091919 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23131189051) 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, 1285066051 + ... + 1285066068.
Almost surely, 223131189071 is an apocalyptic number.
23131189071 is a deficient number, since it is larger than the sum of its proper divisors (10280528489).
23131189071 is a wasteful number, since it uses less digits than its factorization.
23131189071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2570132125 (or 2570132122 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 36.
The spelling of 23131189071 in words is "twenty-three billion, one hundred thirty-one million, one hundred eighty-nine thousand, seventy-one".
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