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150891980 = 22510174699
BaseRepresentation
bin10001111111001…
…10110111001100
3101111221002212212
420333212313030
5302112020410
622550045552
73511363211
oct1077466714
9344832785
10150891980
11781a1418
12426498b8
1325351bc5
141607bb08
15d3a8b05
hex8fe6dcc

150891980 has 24 divisors (see below), whose sum is σ = 320014800. Its totient is φ = 59758400.

The previous prime is 150891971. The next prime is 150891989. The reversal of 150891980 is 89198051.

It is an interprime number because it is at equal distance from previous prime (150891971) and next prime (150891989).

It is not an unprimeable number, because it can be changed into a prime (150891989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35330 + ... + 39369.

It is an arithmetic number, because the mean of its divisors is an integer number (13333950).

Almost surely, 2150891980 is an apocalyptic number.

150891980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150891980 is an abundant number, since it is smaller than the sum of its proper divisors (169122820).

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

150891980 is a wasteful number, since it uses less digits than its factorization.

150891980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74809 (or 74807 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 150891980 is about 12283.8096696424. The cubic root of 150891980 is about 532.3803929533.

The spelling of 150891980 in words is "one hundred fifty million, eight hundred ninety-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 74699 149398 298796 373495 746990 1493980 7544599 15089198 30178396 37722995 75445990 150891980