Search a number
-
+
131130420132 = 22310927535011
BaseRepresentation
bin111101000011111111…
…0110110101110100100
3110112110201000112112010
41322013332312232210
54122023341421012
6140123535554220
712321351115605
oct1720776665644
9415421015463
10131130420132
1150680781548
12214b738b970
13c49a14679a
1464bd685dac
153627207c3c
hex1e87fb6ba4

131130420132 has 12 divisors (see below), whose sum is σ = 305970980336. Its totient is φ = 43710140040.

The previous prime is 131130420103. The next prime is 131130420137. The reversal of 131130420132 is 231024031131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 131130420099 and 131130420108.

It is not an unprimeable number, because it can be changed into a prime (131130420137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5463767494 + ... + 5463767517.

Almost surely, 2131130420132 is an apocalyptic number.

131130420132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131130420132 is an abundant number, since it is smaller than the sum of its proper divisors (174840560204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131130420132 is a wasteful number, since it uses less digits than its factorization.

131130420132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10927535018 (or 10927535016 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131130420132 its reverse (231024031131), we get a palindrome (362154451263).

The spelling of 131130420132 in words is "one hundred thirty-one billion, one hundred thirty million, four hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 10927535011 21855070022 32782605033 43710140044 65565210066 131130420132