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150640872 = 23315739979
BaseRepresentation
bin10001111101010…
…01100011101000
3101111110100102120
420332221203220
5302031001442
622540431240
73506266134
oct1076514350
9344410376
10150640872
117803a798
1242548520
1325294815
14160143c4
15d3594ec
hex8fa98e8

150640872 has 32 divisors (see below), whose sum is σ = 379010400. Its totient is φ = 49892544.

The previous prime is 150640871. The next prime is 150640883. The reversal of 150640872 is 278046051.

150640872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (150640871) 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, 16222 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (11844075).

Almost surely, 2150640872 is an apocalyptic number.

150640872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

150640872 is an abundant number, since it is smaller than the sum of its proper divisors (228369528).

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

150640872 is a wasteful number, since it uses less digits than its factorization.

150640872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40145 (or 40141 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 150640872 is about 12273.5843175496. The cubic root of 150640872 is about 532.0849073970.

The spelling of 150640872 in words is "one hundred fifty million, six hundred forty thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 157 314 471 628 942 1256 1884 3768 39979 79958 119937 159916 239874 319832 479748 959496 6276703 12553406 18830109 25106812 37660218 50213624 75320436 150640872