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38835442912 = 257173372513
BaseRepresentation
bin100100001010110001…
…011101010011100000
310201020111201220111111
4210022301131103200
51114013333133122
625501334153104
72543243550430
oct441261352340
9121214656444
1038835442912
1115519660072
127639ab2794
13387ba1a626
141c45a662c0
15102464cd77
hex90ac5d4e0

38835442912 has 24 divisors (see below), whose sum is σ = 87379747056. Its totient is φ = 16643761152.

The previous prime is 38835442897. The next prime is 38835442951. The reversal of 38835442912 is 21924453883.

It is a happy number.

It is a super-2 number, since 2×388354429122 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 86686033 + ... + 86686480.

It is an arithmetic number, because the mean of its divisors is an integer number (3640822794).

Almost surely, 238835442912 is an apocalyptic number.

38835442912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38835442912 is an abundant number, since it is smaller than the sum of its proper divisors (48544304144).

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

38835442912 is a wasteful number, since it uses less digits than its factorization.

38835442912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173372530 (or 173372522 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 38835442912 in words is "thirty-eight billion, eight hundred thirty-five million, four hundred forty-two thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 173372513 346745026 693490052 1213607591 1386980104 2427215182 2773960208 4854430364 5547920416 9708860728 19417721456 38835442912