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151031072 = 2529162749
BaseRepresentation
bin10010000000010…
…00110100100000
3101112012011200102
421000020310200
5302130443242
622553041532
73512512553
oct1100106440
9345164612
10151031072
1178286975
12426b62a8
13253a02ca
14160b669a
15d3d4e32
hex9008d20

151031072 has 24 divisors (see below), whose sum is σ = 307597500. Its totient is φ = 72911104.

The previous prime is 151031053. The next prime is 151031081. The reversal of 151031072 is 270130151.

It can be written as a sum of positive squares in 2 ways, for example, as 145057936 + 5973136 = 12044^2 + 2444^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80447 + ... + 82302.

Almost surely, 2151031072 is an apocalyptic number.

It is an amenable number.

151031072 is an abundant number, since it is smaller than the sum of its proper divisors (156566428).

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

151031072 is a wasteful number, since it uses less digits than its factorization.

151031072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162788 (or 162780 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 151031072 is about 12289.4699641604. The cubic root of 151031072 is about 532.5439251973.

The spelling of 151031072 in words is "one hundred fifty-one million, thirty-one thousand, seventy-two".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 162749 325498 650996 1301992 2603984 4719721 5207968 9439442 18878884 37757768 75515536 151031072