Search a number
-
+
131074237 = 7113165707
BaseRepresentation
bin1111101000000…
…00100010111101
3100010122021001101
413310000202331
5232023333422
621001213101
73151053430
oct764004275
9303567041
10131074237
1167a96018
1237a91191
1321203728
141359d817
15b791c27
hex7d008bd

131074237 has 8 divisors (see below), whose sum is σ = 151125696. Its totient is φ = 111354432.

The previous prime is 131074219. The next prime is 131074241. The reversal of 131074237 is 732470131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131074237 - 27 = 131074109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131074297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82063 + ... + 83644.

It is an arithmetic number, because the mean of its divisors is an integer number (18890712).

Almost surely, 2131074237 is an apocalyptic number.

It is an amenable number.

131074237 is a deficient number, since it is larger than the sum of its proper divisors (20051459).

131074237 is a wasteful number, since it uses less digits than its factorization.

131074237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165827.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 131074237 is about 11448.7657413365. The cubic root of 131074237 is about 507.9712264377.

The spelling of 131074237 in words is "one hundred thirty-one million, seventy-four thousand, two hundred thirty-seven".

Divisors: 1 7 113 791 165707 1159949 18724891 131074237