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131340272 = 2471172681
BaseRepresentation
bin1111101010000…
…01011111110000
3100011010202222112
413311001133300
5232110342042
621011024452
73153242150
oct765013760
9304122875
10131340272
1168157988
1237b9b128
132129784b
141362c760
15b7e5982
hex7d417f0

131340272 has 20 divisors (see below), whose sum is σ = 290825136. Its totient is φ = 56288640.

The previous prime is 131340271. The next prime is 131340289. The reversal of 131340272 is 272043131.

131340272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586229 + ... + 586452.

Almost surely, 2131340272 is an apocalyptic number.

It is an amenable number.

131340272 is an abundant number, since it is smaller than the sum of its proper divisors (159484864).

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

131340272 is a wasteful number, since it uses less digits than its factorization.

131340272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172696 (or 1172690 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 131340272 is about 11460.3783532657. The cubic root of 131340272 is about 508.3146623499.

The spelling of 131340272 in words is "one hundred thirty-one million, three hundred forty thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 1172681 2345362 4690724 8208767 9381448 16417534 18762896 32835068 65670136 131340272