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38914663839 = 3106877121369
BaseRepresentation
bin100100001111011111…
…101010010110011111
310201110000210202011220
4210033133222112133
51114144123220324
625513244144423
72545225120302
oct441737522637
9121400722156
1038914663839
111555a349a07
127660538113
13389226720c
141c523a8b39
15102b59ab79
hex90f7ea59f

38914663839 has 8 divisors (see below), whose sum is σ = 51887131440. Its totient is φ = 25942652736.

The previous prime is 38914663831. The next prime is 38914663871. The reversal of 38914663839 is 93836641983.

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

It is not a de Polignac number, because 38914663839 - 23 = 38914663831 is a prime.

It is a super-3 number, since 3×389146638393 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38914663831) 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, 259947 + ... + 381315.

It is an arithmetic number, because the mean of its divisors is an integer number (6485891430).

Almost surely, 238914663839 is an apocalyptic number.

38914663839 is a deficient number, since it is larger than the sum of its proper divisors (12972467601).

38914663839 is a wasteful number, since it uses less digits than its factorization.

38914663839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228249.

The product of its digits is 20155392, while the sum is 60.

The spelling of 38914663839 in words is "thirty-eight billion, nine hundred fourteen million, six hundred sixty-three thousand, eight hundred thirty-nine".

Divisors: 1 3 106877 121369 320631 364107 12971554613 38914663839