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131350242 = 2347465781
BaseRepresentation
bin1111101010000…
…11111011100010
3100011011021122210
413311003323202
5232111201432
621011142550
73153313212
oct765037342
9304137583
10131350242
1168164421
1237ba4a56
132129c24a
1413632242
15b7e88cc
hex7d43ee2

131350242 has 16 divisors (see below), whose sum is σ = 268290432. Its totient is φ = 42851760.

The previous prime is 131350237. The next prime is 131350253. The reversal of 131350242 is 242053131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232609 + ... + 233172.

It is an arithmetic number, because the mean of its divisors is an integer number (16768152).

Almost surely, 2131350242 is an apocalyptic number.

131350242 is an abundant number, since it is smaller than the sum of its proper divisors (136940190).

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

131350242 is a wasteful number, since it uses less digits than its factorization.

131350242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465833.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131350242 is about 11460.8133219244. The cubic root of 131350242 is about 508.3275240281.

The spelling of 131350242 in words is "one hundred thirty-one million, three hundred fifty thousand, two hundred forty-two".

Divisors: 1 2 3 6 47 94 141 282 465781 931562 1397343 2794686 21891707 43783414 65675121 131350242