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38408539107 = 3291062741543
BaseRepresentation
bin100011110001010100…
…111100101111100011
310200010202102221120110
4203301110330233203
51112130041222412
625351124142403
72526541124061
oct436124745743
9120122387513
1038408539107
111531a689a04
12753ab37a03
133811449423
141c0509b031
15eebe22d3c
hex8f153cbe3

38408539107 has 16 divisors (see below), whose sum is σ = 52983555840. Its totient is φ = 24719816352.

The previous prime is 38408539021. The next prime is 38408539133. The reversal of 38408539107 is 70193580483.

It is not a de Polignac number, because 38408539107 - 28 = 38408538851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38408539177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903778 + ... + 945320.

It is an arithmetic number, because the mean of its divisors is an integer number (3311472240).

Almost surely, 238408539107 is an apocalyptic number.

38408539107 is a deficient number, since it is larger than the sum of its proper divisors (14575016733).

38408539107 is a wasteful number, since it uses less digits than its factorization.

38408539107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52202.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 38408539107 in words is "thirty-eight billion, four hundred eight million, five hundred thirty-nine thousand, one hundred seven".

Divisors: 1 3 29 87 10627 31881 41543 124629 308183 924549 1204747 3614241 441477461 1324432383 12802846369 38408539107