Base | Representation |
---|---|
bin | 111100100110100100… |
… | …1000010100101111111 |
3 | 110102220220110022022202 |
4 | 1321031021002211333 |
5 | 4113013132000211 |
6 | 135441553102115 |
7 | 12255033145310 |
oct | 1711511024577 |
9 | 412826408282 |
10 | 130143234431 |
11 | 502145102a1 |
12 | 2128085793b |
13 | c370775132 |
14 | 6428512607 |
15 | 35ba70853b |
hex | 1e4d24297f |
130143234431 has 32 divisors (see below), whose sum is σ = 160615664640. Its totient is φ = 102982150656.
The previous prime is 130143234391. The next prime is 130143234433. The reversal of 130143234431 is 134432341031.
It is a happy number.
It is not a de Polignac number, because 130143234431 - 214 = 130143218047 is a prime.
It is a super-2 number, since 2×1301432344312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130143234394 and 130143234403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130143234433) 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, 20246240 + ... + 20252666.
It is an arithmetic number, because the mean of its divisors is an integer number (5019239520).
Almost surely, 2130143234431 is an apocalyptic number.
130143234431 is a deficient number, since it is larger than the sum of its proper divisors (30472430209).
130143234431 is a wasteful number, since it uses less digits than its factorization.
130143234431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10823.
The product of its (nonzero) digits is 10368, while the sum is 29.
Adding to 130143234431 its reverse (134432341031), we get a palindrome (264575575462).
The spelling of 130143234431 in words is "one hundred thirty billion, one hundred forty-three million, two hundred thirty-four thousand, four hundred thirty-one".
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