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39128660268 = 22319461372271
BaseRepresentation
bin100100011100001111…
…111111100100101100
310201222221110220002120
4210130033333210230
51120113414112033
625550410552540
72553434060505
oct443417774454
9121887426076
1039128660268
111565a121665
127700138750
1338c76b2119
141c72991bac
15104026c1b3
hex91c3ff92c

39128660268 has 48 divisors (see below), whose sum is σ = 96314211840. Its totient is φ = 12329582400.

The previous prime is 39128660251. The next prime is 39128660269. The reversal of 39128660268 is 86206682193.

It is a self number, because there is not a number n which added to its sum of digits gives 39128660268.

It is not an unprimeable number, because it can be changed into a prime (39128660269) 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, 81028 + ... + 291243.

It is an arithmetic number, because the mean of its divisors is an integer number (2006546080).

Almost surely, 239128660268 is an apocalyptic number.

39128660268 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39128660268 is an abundant number, since it is smaller than the sum of its proper divisors (57185551572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39128660268 is a wasteful number, since it uses less digits than its factorization.

39128660268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372758 (or 372756 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 39128660268 in words is "thirty-nine billion, one hundred twenty-eight million, six hundred sixty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 461 922 1383 1844 2766 5532 8759 17518 26277 35036 52554 105108 372271 744542 1116813 1489084 2233626 4467252 7073149 14146298 21219447 28292596 42438894 84877788 171616931 343233862 514850793 686467724 1029701586 2059403172 3260721689 6521443378 9782165067 13042886756 19564330134 39128660268