Base | Representation |
---|---|
bin | 11000010000101001… |
… | …01011010101111111 |
3 | 1020121200222012001112 |
4 | 30020110223111333 |
5 | 203133240240111 |
6 | 5552225032235 |
7 | 640521522626 |
oct | 141024532577 |
9 | 36550865045 |
10 | 13024540031 |
11 | 5584016778 |
12 | 2635a8567b |
13 | 12c74b4729 |
14 | 8b7b166bd |
15 | 51369ce8b |
hex | 30852b57f |
13024540031 has 4 divisors (see below), whose sum is σ = 13301657952. Its totient is φ = 12747422112.
The previous prime is 13024540013. The next prime is 13024540049. The reversal of 13024540031 is 13004542031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13004542031 = 13 ⋅1000349387.
It is an interprime number because it is at equal distance from previous prime (13024540013) and next prime (13024540049).
It is a cyclic number.
It is not a de Polignac number, because 13024540031 - 26 = 13024539967 is a prime.
It is a super-2 number, since 2×130245400312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13024539979 and 13024540006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13024540231) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138558890 + ... + 138558983.
It is an arithmetic number, because the mean of its divisors is an integer number (3325414488).
Almost surely, 213024540031 is an apocalyptic number.
13024540031 is a deficient number, since it is larger than the sum of its proper divisors (277117921).
13024540031 is an equidigital number, since it uses as much as digits as its factorization.
13024540031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 277117920.
The product of its (nonzero) digits is 1440, while the sum is 23.
The spelling of 13024540031 in words is "thirteen billion, twenty-four million, five hundred forty thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •