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151715730 = 2355057191
BaseRepresentation
bin10010000101011…
…11111110010010
3101120110221212010
421002233332102
5302314400410
623015443350
73521363625
oct1102577622
9346427763
10151715730
1178704301
1242986556
132557cb2a
1416213dbc
15d4bcc20
hex90aff92

151715730 has 16 divisors (see below), whose sum is σ = 364117824. Its totient is φ = 40457520.

The previous prime is 151715717. The next prime is 151715737. The reversal of 151715730 is 37517151.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5057191 = 151715730 / (1 + 5 + 1 + 7 + 1 + 5 + 7 + 3 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151715737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528566 + ... + 2528625.

It is an arithmetic number, because the mean of its divisors is an integer number (22757364).

Almost surely, 2151715730 is an apocalyptic number.

151715730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151715730 is an abundant number, since it is smaller than the sum of its proper divisors (212402094).

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

151715730 is a wasteful number, since it uses less digits than its factorization.

151715730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057201.

The product of its (nonzero) digits is 3675, while the sum is 30.

The square root of 151715730 is about 12317.2939398230. The cubic root of 151715730 is about 533.3474262769.

The spelling of 151715730 in words is "one hundred fifty-one million, seven hundred fifteen thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5057191 10114382 15171573 25285955 30343146 50571910 75857865 151715730