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38685113487187 = 172838040971417
BaseRepresentation
bin10001100101111000101000…
…11100101000111101010011
312001222021001001222100112221
420302330110130220331103
520032304103023042222
6214135410143001511
711101623114100126
oct1062742434507523
9161867031870487
1038685113487187
11113652a0054532
124409526299297
131877cb530a97b
1497a525c0c3bd
1547144de4d0c7
hex232f14728f53

38685113487187 has 8 divisors (see below), whose sum is σ = 41105445888816. Its totient is φ = 36280863028992.

The previous prime is 38685113487179. The next prime is 38685113487233. The reversal of 38685113487187 is 78178431158683.

38685113487187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38685113487187 - 23 = 38685113487179 is a prime.

It is a super-2 number, since 2×386851134871872 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38685113487127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4020480898 + ... + 4020490519.

It is an arithmetic number, because the mean of its divisors is an integer number (5138180736102).

Almost surely, 238685113487187 is an apocalyptic number.

38685113487187 is a deficient number, since it is larger than the sum of its proper divisors (2420332401629).

38685113487187 is a wasteful number, since it uses less digits than its factorization.

38685113487187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040971717.

The product of its digits is 216760320, while the sum is 70.

The spelling of 38685113487187 in words is "thirty-eight trillion, six hundred eighty-five billion, one hundred thirteen million, four hundred eighty-seven thousand, one hundred eighty-seven".

Divisors: 1 17 283 4811 8040971417 136696514089 2275594911011 38685113487187