Base | Representation |
---|---|
bin | 111101000100010101… |
… | …1100001110110110000 |
3 | 110112111112001111222102 |
4 | 1322020223201312300 |
5 | 4122034341143440 |
6 | 140125034555532 |
7 | 12321552502460 |
oct | 1721053416660 |
9 | 415445044872 |
10 | 131142131120 |
11 | 50687350150 |
12 | 214bb298ba8 |
13 | c49c6b7070 |
14 | 64c1053ba0 |
15 | 362826cb15 |
hex | 1e88ae1db0 |
131142131120 has 160 divisors (see below), whose sum is σ = 409383797760. Its totient is φ = 37731179520.
The previous prime is 131142131117. The next prime is 131142131143. The reversal of 131142131120 is 21131241131.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 131142131092 and 131142131101.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738740 + ... + 898899.
It is an arithmetic number, because the mean of its divisors is an integer number (2558648736).
Almost surely, 2131142131120 is an apocalyptic number.
131142131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131142131120 is an abundant number, since it is smaller than the sum of its proper divisors (278241666640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131142131120 is a wasteful number, since it uses less digits than its factorization.
131142131120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1637683 (or 1637677 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 20.
Adding to 131142131120 its reverse (21131241131), we get a palindrome (152273372251).
It can be divided in two parts, 131142 and 131120, that added together give a palindrome (262262).
The spelling of 131142131120 in words is "one hundred thirty-one billion, one hundred forty-two million, one hundred thirty-one thousand, one hundred twenty".
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