Base | Representation |
---|---|
bin | 11101110101011001101001… |
… | …100010000010101100010001 |
3 | 122012120211202001211021222002 |
4 | 131311121221202002230101 |
5 | 114144243231441040101 |
6 | 1143022232504523345 |
7 | 36431553663533120 |
oct | 3565315142025421 |
9 | 565524661737862 |
10 | 131213021424401 |
11 | 38899147972194 |
12 | 12871b67480555 |
13 | 582a447803437 |
14 | 2458a5bc2bab7 |
15 | 1028242518d6b |
hex | 775669882b11 |
131213021424401 has 32 divisors (see below), whose sum is σ = 155859237331200. Its totient is φ = 108079094753280.
The previous prime is 131213021424383. The next prime is 131213021424427. The reversal of 131213021424401 is 104424120312131.
It is a de Polignac number, because none of the positive numbers 2k-131213021424401 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131213021424431) 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, 113462585 + ... + 114613193.
It is an arithmetic number, because the mean of its divisors is an integer number (4870601166600).
Almost surely, 2131213021424401 is an apocalyptic number.
It is an amenable number.
131213021424401 is a deficient number, since it is larger than the sum of its proper divisors (24646215906799).
131213021424401 is a wasteful number, since it uses less digits than its factorization.
131213021424401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1153289.
The product of its (nonzero) digits is 4608, while the sum is 29.
Adding to 131213021424401 its reverse (104424120312131), we get a palindrome (235637141736532).
The spelling of 131213021424401 in words is "one hundred thirty-one trillion, two hundred thirteen billion, twenty-one million, four hundred twenty-four thousand, four hundred one".
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