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38107478117 = 193754206939
BaseRepresentation
bin100011011111011000…
…011111100001100101
310122100202221110112102
4203133120133201211
51111021003244432
625301211301445
72516224135202
oct433730374145
9118322843472
1038107478117
1115185750375
12747614a885
133793c69727
141bb70ccca9
15ed07a4962
hex8df61f865

38107478117 has 8 divisors (see below), whose sum is σ = 41197274400. Its totient is φ = 35126095824.

The previous prime is 38107478111. The next prime is 38107478147. The reversal of 38107478117 is 71187470183.

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 38107478117 - 212 = 38107474021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38107478111) 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, 27102767 + ... + 27104172.

It is an arithmetic number, because the mean of its divisors is an integer number (5149659300).

Almost surely, 238107478117 is an apocalyptic number.

38107478117 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

38107478117 is a deficient number, since it is larger than the sum of its proper divisors (3089796283).

38107478117 is a wasteful number, since it uses less digits than its factorization.

38107478117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54206995.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 38107478117 in words is "thirty-eight billion, one hundred seven million, four hundred seventy-eight thousand, one hundred seventeen".

Divisors: 1 19 37 703 54206939 1029931841 2005656743 38107478117