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38922631894 = 21710910502599
BaseRepresentation
bin100100001111111110…
…000011101011010110
310201110120210120022001
4210033332003223112
51114203143210034
625514131025514
72545352624626
oct441776035326
9121416716261
1038922631894
11155638a1483
12766313b29a
133893ac6c43
141c53480886
15102c121a14
hex90ff83ad6

38922631894 has 16 divisors (see below), whose sum is σ = 62385444000. Its totient is φ = 18148489344.

The previous prime is 38922631879. The next prime is 38922631933. The reversal of 38922631894 is 49813622983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5247594 + ... + 5255005.

It is an arithmetic number, because the mean of its divisors is an integer number (3899090250).

Almost surely, 238922631894 is an apocalyptic number.

38922631894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38922631894 is a deficient number, since it is larger than the sum of its proper divisors (23462812106).

38922631894 is a wasteful number, since it uses less digits than its factorization.

38922631894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502727.

The product of its digits is 4478976, while the sum is 55.

The spelling of 38922631894 in words is "thirty-eight billion, nine hundred twenty-two million, six hundred thirty-one thousand, eight hundred ninety-four".

Divisors: 1 2 17 34 109 218 1853 3706 10502599 21005198 178544183 357088366 1144783291 2289566582 19461315947 38922631894