Search a number
-
+
131120324 = 2232780081
BaseRepresentation
bin1111101000010…
…11110011000100
3100010201121021022
413310023303010
5232031322244
621002210312
73151334666
oct764136304
9303647238
10131120324
1168017705
1237ab3998
132121b6ba
14135b2536
15b7a06ee
hex7d0bcc4

131120324 has 6 divisors (see below), whose sum is σ = 229460574. Its totient is φ = 65560160.

The previous prime is 131120257. The next prime is 131120413. The reversal of 131120324 is 423021131.

It can be written as a sum of positive squares in only one way, i.e., 99400900 + 31719424 = 9970^2 + 5632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16390037 + ... + 16390044.

It is an arithmetic number, because the mean of its divisors is an integer number (38243429).

Almost surely, 2131120324 is an apocalyptic number.

It is an amenable number.

131120324 is a deficient number, since it is larger than the sum of its proper divisors (98340250).

131120324 is a wasteful number, since it uses less digits than its factorization.

131120324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780085 (or 32780083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131120324 is about 11450.7783141584. The cubic root of 131120324 is about 508.0307553662.

Adding to 131120324 its reverse (423021131), we get a palindrome (554141455).

The spelling of 131120324 in words is "one hundred thirty-one million, one hundred twenty thousand, three hundred twenty-four".

Divisors: 1 2 4 32780081 65560162 131120324