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38375646500 = 225376751293
BaseRepresentation
bin100011101111010111…
…011110010100100100
310200001110112211101202
4203233113132110210
51112043131142000
625343551142032
72525661420212
oct435727362444
9120043484352
1038375646500
1115303063234
12752bb14918
1338076a0949
141c00977cb2
15ee90c6dd5
hex8ef5de524

38375646500 has 24 divisors (see below), whose sum is σ = 83812413048. Its totient is φ = 15350258400.

The previous prime is 38375646493. The next prime is 38375646503. The reversal of 38375646500 is 564657383.

It can be written as a sum of positive squares in 4 ways, for example, as 1674282724 + 36701363776 = 40918^2 + 191576^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38375646503) 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, 38375147 + ... + 38376146.

It is an arithmetic number, because the mean of its divisors is an integer number (3492183877).

Almost surely, 238375646500 is an apocalyptic number.

It is an amenable number.

38375646500 is an abundant number, since it is smaller than the sum of its proper divisors (45436766548).

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

38375646500 is a wasteful number, since it uses less digits than its factorization.

38375646500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76751312 (or 76751300 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 38375646500 in words is "thirty-eight billion, three hundred seventy-five million, six hundred forty-six thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 76751293 153502586 307005172 383756465 767512930 1535025860 1918782325 3837564650 7675129300 9593911625 19187823250 38375646500