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39830337428 = 2277120035381
BaseRepresentation
bin100101000110000100…
…101011011110010100
310210210211210210012112
4211012010223132110
51123033031244203
630144154210152
72610014165510
oct450604533624
9123724723175
1039830337428
111598a207042
127877123958
1339a9b8a9cb
141cdbc45140
151081b716d8
hex94612b794

39830337428 has 24 divisors (see below), whose sum is σ = 80782660224. Its totient is φ = 16829719200.

The previous prime is 39830337427. The next prime is 39830337439. The reversal of 39830337428 is 82473303893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39830337427) 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, 10015703 + ... + 10019678.

It is an arithmetic number, because the mean of its divisors is an integer number (3365944176).

Almost surely, 239830337428 is an apocalyptic number.

It is an amenable number.

39830337428 is an abundant number, since it is smaller than the sum of its proper divisors (40952322796).

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

39830337428 is a wasteful number, since it uses less digits than its factorization.

39830337428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20035463 (or 20035461 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 39830337428 in words is "thirty-nine billion, eight hundred thirty million, three hundred thirty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 71 142 284 497 994 1988 20035381 40070762 80141524 140247667 280495334 560990668 1422512051 2845024102 5690048204 9957584357 19915168714 39830337428