Search a number
-
+
131152242 = 23133075477
BaseRepresentation
bin1111101000100…
…11100101110010
3100010210020001110
413310103211302
5232033332432
621003014150
73151530024
oct764234562
9303706043
10131152242
1168039691
1237b0a356
13212300a0
14135c0014
15b7a9dcc
hex7d13972

131152242 has 32 divisors (see below), whose sum is σ = 283453632. Its totient is φ = 40215744.

The previous prime is 131152223. The next prime is 131152249. The reversal of 131152242 is 242251131.

It is not an unprimeable number, because it can be changed into a prime (131152249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21208 + ... + 26684.

It is an arithmetic number, because the mean of its divisors is an integer number (8857926).

Almost surely, 2131152242 is an apocalyptic number.

131152242 is an abundant number, since it is smaller than the sum of its proper divisors (152301390).

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

131152242 is a wasteful number, since it uses less digits than its factorization.

131152242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802.

The product of its digits is 480, while the sum is 21.

The square root of 131152242 is about 11452.1719337425. The cubic root of 131152242 is about 508.0719745293.

The spelling of 131152242 in words is "one hundred thirty-one million, one hundred fifty-two thousand, two hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 307 614 921 1842 3991 5477 7982 10954 11973 16431 23946 32862 71201 142402 213603 427206 1681439 3362878 5044317 10088634 21858707 43717414 65576121 131152242