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38427279816 = 2331601136659
BaseRepresentation
bin100011110010011100…
…011100000111001000
310200012001201001222210
4203302130130013020
51112144340423231
625353033545120
72530156326522
oct436234340710
9120161631883
1038427279816
111532a21a0a2
1275452751a0
1338152ab5c3
141c07778a12
15eed8c5a46
hex8f271c1c8

38427279816 has 16 divisors (see below), whose sum is σ = 96068199600. Its totient is φ = 12809093264.

The previous prime is 38427279811. The next prime is 38427279833. The reversal of 38427279816 is 61897272483.

It is not an unprimeable number, because it can be changed into a prime (38427279811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800568306 + ... + 800568353.

It is an arithmetic number, because the mean of its divisors is an integer number (6004262475).

Almost surely, 238427279816 is an apocalyptic number.

It is an amenable number.

38427279816 is an abundant number, since it is smaller than the sum of its proper divisors (57640919784).

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

38427279816 is a wasteful number, since it uses less digits than its factorization.

38427279816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601136668 (or 1601136664 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 57.

The spelling of 38427279816 in words is "thirty-eight billion, four hundred twenty-seven million, two hundred seventy-nine thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 1601136659 3202273318 4803409977 6404546636 9606819954 12809093272 19213639908 38427279816