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38928012 = 2233244001
BaseRepresentation
bin1001010001111…
…1111010001100
32201020202012020
42110133322030
534431144022
63510210140
7651611514
oct224377214
981222166
1038928012
111aa79212
1211053950
1380ac936
145254844
15363e35c
hex251fe8c

38928012 has 12 divisors (see below), whose sum is σ = 90832056. Its totient is φ = 12976000.

The previous prime is 38927981. The next prime is 38928031. The reversal of 38928012 is 21082983.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1621989 + ... + 1622012.

It is an arithmetic number, because the mean of its divisors is an integer number (7569338).

Almost surely, 238928012 is an apocalyptic number.

It is an amenable number.

38928012 is an abundant number, since it is smaller than the sum of its proper divisors (51904044).

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

38928012 is a wasteful number, since it uses less digits than its factorization.

38928012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244008 (or 3244006 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 38928012 is about 6239.2316834687. The cubic root of 38928012 is about 338.9123606345.

The spelling of 38928012 in words is "thirty-eight million, nine hundred twenty-eight thousand, twelve".

Divisors: 1 2 3 4 6 12 3244001 6488002 9732003 12976004 19464006 38928012