Base | Representation |
---|---|
bin | 10111100100001111… |
… | …01010111000101011 |
3 | 1012122202000210110102 |
4 | 23302013222320223 |
5 | 201402410002111 |
6 | 5451240540015 |
7 | 625346331206 |
oct | 136207527053 |
9 | 35582023412 |
10 | 12652031531 |
11 | 5402818607 |
12 | 255118160b |
13 | 126827a3b9 |
14 | 88046a93d |
15 | 4e0b1a13b |
hex | 2f21eae2b |
12652031531 has 2 divisors, whose sum is σ = 12652031532. Its totient is φ = 12652031530.
The previous prime is 12652031527. The next prime is 12652031593. The reversal of 12652031531 is 13513025621.
It is a weak prime.
It is an emirp because it is prime and its reverse (13513025621) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12652031531 - 22 = 12652031527 is a prime.
It is a super-2 number, since 2×126520315312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12652031494 and 12652031503.
It is not a weakly prime, because it can be changed into another prime (12652031131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6326015765 + 6326015766.
It is an arithmetic number, because the mean of its divisors is an integer number (6326015766).
Almost surely, 212652031531 is an apocalyptic number.
12652031531 is a deficient number, since it is larger than the sum of its proper divisors (1).
12652031531 is an equidigital number, since it uses as much as digits as its factorization.
12652031531 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5400, while the sum is 29.
The spelling of 12652031531 in words is "twelve billion, six hundred fifty-two million, thirty-one thousand, five hundred thirty-one".
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