Search a number
-
+
131453772 = 22310954481
BaseRepresentation
bin1111101010111…
…01001101001100
3100011100112200020
413311131031030
5232123010042
621013302140
73154224102
oct765351514
9304315606
10131453772
116822518a
1238034950
13213073c8
141365bc72
15b8193ec
hex7d5d34c

131453772 has 12 divisors (see below), whose sum is σ = 306725496. Its totient is φ = 43817920.

The previous prime is 131453753. The next prime is 131453797. The reversal of 131453772 is 277354131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5477229 + ... + 5477252.

It is an arithmetic number, because the mean of its divisors is an integer number (25560458).

Almost surely, 2131453772 is an apocalyptic number.

131453772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131453772 is an abundant number, since it is smaller than the sum of its proper divisors (175271724).

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

131453772 is a wasteful number, since it uses less digits than its factorization.

131453772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10954488 (or 10954486 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 131453772 is about 11465.3291274171. The cubic root of 131453772 is about 508.4610432028.

The spelling of 131453772 in words is "one hundred thirty-one million, four hundred fifty-three thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 10954481 21908962 32863443 43817924 65726886 131453772