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151388920 = 2353784723
BaseRepresentation
bin10010000011000…
…00001011111000
3101112212100120001
421001200023320
5302223421140
623004442344
73515533054
oct1101401370
9345770501
10151388920
1178500811
12428493b4
1325497157
141616ac64
15d455e9a
hex90602f8

151388920 has 16 divisors (see below), whose sum is σ = 340625160. Its totient is φ = 60555552.

The previous prime is 151388879. The next prime is 151388957. The reversal of 151388920 is 29883151.

It is a self number, because there is not a number n which added to its sum of digits gives 151388920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892322 + ... + 1892401.

Almost surely, 2151388920 is an apocalyptic number.

151388920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151388920 is an abundant number, since it is smaller than the sum of its proper divisors (189236240).

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

151388920 is a wasteful number, since it uses less digits than its factorization.

151388920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784734 (or 3784730 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 151388920 is about 12304.0204811273. The cubic root of 151388920 is about 532.9641907403.

The spelling of 151388920 in words is "one hundred fifty-one million, three hundred eighty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3784723 7569446 15138892 18923615 30277784 37847230 75694460 151388920