Base | Representation |
---|---|
bin | 10111010110111101… |
… | …11000011110111111 |
3 | 1012100222111100102122 |
4 | 23223132320132333 |
5 | 201140403113111 |
6 | 5432222113155 |
7 | 622524662462 |
oct | 135336703677 |
9 | 35328440378 |
10 | 12540676031 |
11 | 5355980574 |
12 | 251ba1b7bb |
13 | 124b18c080 |
14 | 86d7612d9 |
15 | 4d5e70cdb |
hex | 2eb7b87bf |
12540676031 has 8 divisors (see below), whose sum is σ = 13509132000. Its totient is φ = 11572761312.
The previous prime is 12540676021. The next prime is 12540676051. The reversal of 12540676031 is 13067604521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12540676031 is a prime.
It is a super-2 number, since 2×125406760312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12540675982 and 12540676000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12540676021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86531 + ... + 180468.
It is an arithmetic number, because the mean of its divisors is an integer number (1688641500).
Almost surely, 212540676031 is an apocalyptic number.
12540676031 is a deficient number, since it is larger than the sum of its proper divisors (968455969).
12540676031 is a wasteful number, since it uses less digits than its factorization.
12540676031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270625.
The product of its (nonzero) digits is 30240, while the sum is 35.
The spelling of 12540676031 in words is "twelve billion, five hundred forty million, six hundred seventy-six thousand, thirty-one".
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