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80788396956 = 22337199914351
BaseRepresentation
bin100101100111101011…
…1010001101110011100
321201112021121210022020
41023033113101232130
52310423312200311
6101040315420140
75560004021001
oct1131727215634
9251467553266
1080788396956
1131297a42413
12137a7a54650
1378065845a7
143ca57638a8
15217c802c06
hex12cf5d1b9c

80788396956 has 48 divisors (see below), whose sum is σ = 194574105600. Its totient is φ = 26069947200.

The previous prime is 80788396907. The next prime is 80788396963. The reversal of 80788396956 is 65969388708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368820 + ... + 545531.

It is an arithmetic number, because the mean of its divisors is an integer number (4053627200).

Almost surely, 280788396956 is an apocalyptic number.

It is an amenable number.

80788396956 is an abundant number, since it is smaller than the sum of its proper divisors (113785708644).

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

80788396956 is a wasteful number, since it uses less digits than its factorization.

80788396956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914594 (or 914592 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 80788396956 in words is "eighty billion, seven hundred eighty-eight million, three hundred ninety-six thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 37 74 111 148 199 222 398 444 597 796 1194 2388 7363 14726 22089 29452 44178 88356 914351 1828702 2743053 3657404 5486106 10972212 33830987 67661974 101492961 135323948 181955849 202985922 363911698 405971844 545867547 727823396 1091735094 2183470188 6732366413 13464732826 20197099239 26929465652 40394198478 80788396956