Base | Representation |
---|---|
bin | 111101000100000010… |
… | …1010110010011011011 |
3 | 110112110211020000111112 |
4 | 1322020011112103123 |
5 | 4122024310403311 |
6 | 140124040250535 |
7 | 12321401435360 |
oct | 1721005262333 |
9 | 415424200445 |
10 | 131132122331 |
11 | 50681734421 |
12 | 214b7a70a4b |
13 | c49a5c14c2 |
14 | 64bd9aa467 |
15 | 362744228b |
hex | 1e881564db |
131132122331 has 32 divisors (see below), whose sum is σ = 159008256000. Its totient is φ = 105638725152.
The previous prime is 131132122321. The next prime is 131132122399. The reversal of 131132122331 is 133221231131.
It is a cyclic number.
It is not a de Polignac number, because 131132122331 - 218 = 131131860187 is a prime.
It is a super-2 number, since 2×1311321223312 (a number of 23 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 = 131132122297 and 131132122306.
It is not an unprimeable number, because it can be changed into a prime (131132122321) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10445000 + ... + 10457546.
It is an arithmetic number, because the mean of its divisors is an integer number (4969008000).
Almost surely, 2131132122331 is an apocalyptic number.
131132122331 is a deficient number, since it is larger than the sum of its proper divisors (27876133669).
131132122331 is a wasteful number, since it uses less digits than its factorization.
131132122331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13191.
The product of its digits is 648, while the sum is 23.
Adding to 131132122331 its reverse (133221231131), we get a palindrome (264353353462).
The spelling of 131132122331 in words is "one hundred thirty-one billion, one hundred thirty-two million, one hundred twenty-two thousand, three hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •