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78996328708 = 221131712393413
BaseRepresentation
bin100100110010010001…
…1000101000100000100
321112220101112021211011
41021210203011010010
52243241030004313
6100142421252004
75464413500143
oct1114443050404
9245811467734
1078996328708
1130558405a80
1213387864004
1375ac21088b
143b7575375a
1520c531493d
hex12648c5104

78996328708 has 96 divisors (see below), whose sum is σ = 158575656960. Its totient is φ = 34106352000.

The previous prime is 78996328703. The next prime is 78996328717. The reversal of 78996328708 is 80782369987.

It is not an unprimeable number, because it can be changed into a prime (78996328703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23144010 + ... + 23147422.

It is an arithmetic number, because the mean of its divisors is an integer number (1651829760).

Almost surely, 278996328708 is an apocalyptic number.

It is an amenable number.

78996328708 is an abundant number, since it is smaller than the sum of its proper divisors (79579328252).

78996328708 is a wasteful number, since it uses less digits than its factorization.

78996328708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 67.

It can be divided in two parts, 78996 and 328708, that added together give a palindrome (407704).

The spelling of 78996328708 in words is "seventy-eight billion, nine hundred ninety-six million, three hundred twenty-eight thousand, seven hundred eight".

Divisors: 1 2 4 11 22 31 44 62 71 124 142 239 284 341 478 682 781 956 1364 1562 2201 2629 3124 3413 4402 5258 6826 7409 8804 10516 13652 14818 16969 24211 29636 33938 37543 48422 67876 75086 81499 96844 105803 150172 162998 186659 211606 242323 325996 373318 423212 484646 526039 746636 815707 969292 1052078 1163833 1631414 2104156 2327666 2665553 3262828 4655332 5331106 5786429 7512013 8972777 10662212 11572858 15024026 17945554 23145716 25286917 30048052 35891108 50573834 57915197 82632143 101147668 115830394 165264286 231660788 278156087 330528572 556312174 637067167 1112624348 1274134334 1795371107 2548268668 3590742214 7181484428 19749082177 39498164354 78996328708