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150390920 = 23531121283
BaseRepresentation
bin10001111011011…
…00100010001000
3101110222122120002
420331230202020
5302000002140
622531222132
73504205331
oct1075544210
9343878502
10150390920
1177989a19
1242447948
1325207b14
1415d8b288
15d30a415
hex8f6c888

150390920 has 32 divisors (see below), whose sum is σ = 349297920. Its totient is φ = 58215360.

The previous prime is 150390899. The next prime is 150390923. The reversal of 150390920 is 29093051.

It is not an unprimeable number, because it can be changed into a prime (150390923) 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, 59402 + ... + 61881.

It is an arithmetic number, because the mean of its divisors is an integer number (10915560).

Almost surely, 2150390920 is an apocalyptic number.

150390920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150390920 is an abundant number, since it is smaller than the sum of its proper divisors (198907000).

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

150390920 is a wasteful number, since it uses less digits than its factorization.

150390920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121325 (or 121321 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 150390920 is about 12263.3975716357. The cubic root of 150390920 is about 531.7904558516.

The spelling of 150390920 in words is "one hundred fifty million, three hundred ninety thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 121283 242566 485132 606415 970264 1212830 2425660 3759773 4851320 7519546 15039092 18798865 30078184 37597730 75195460 150390920