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15920052 = 2234572903
BaseRepresentation
bin111100101110…
…101110110100
31002221211012120
4330232232310
513033420202
61325115540
7252214101
oct74565664
932854176
1015920052
118a93a75
1253b8bb0
1333b5365
142185aa8
1515e70bc
hexf2ebb4

15920052 has 24 divisors (see below), whose sum is σ = 37240896. Its totient is φ = 5293248.

The previous prime is 15920039. The next prime is 15920063. The reversal of 15920052 is 25002951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4033 + ... + 6935.

It is an arithmetic number, because the mean of its divisors is an integer number (1551704).

Almost surely, 215920052 is an apocalyptic number.

15920052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15920052 is an abundant number, since it is smaller than the sum of its proper divisors (21320844).

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

15920052 is a wasteful number, since it uses less digits than its factorization.

15920052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 15920052 is about 3989.9939849579. The cubic root of 15920052 is about 251.5638082851.

The spelling of 15920052 in words is "fifteen million, nine hundred twenty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 457 914 1371 1828 2742 2903 5484 5806 8709 11612 17418 34836 1326671 2653342 3980013 5306684 7960026 15920052