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80774917795 = 51113263429551
BaseRepresentation
bin100101100111010001…
…1110110111010100011
321201111100020222101001
41023032203312322203
52310411334332140
6101035114452431
75556451321105
oct1131643667243
9251440228331
1080774917795
1131290376310
12137a3434117
137803845260
143ca3a55575
15217b53de9a
hex12ce8f6ea3

80774917795 has 32 divisors (see below), whose sum is σ = 114308941824. Its totient is φ = 54020208000.

The previous prime is 80774917763. The next prime is 80774917807. The reversal of 80774917795 is 59771947708.

It is a happy number.

It is not a de Polignac number, because 80774917795 - 25 = 80774917763 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26731 + ... + 402820.

It is an arithmetic number, because the mean of its divisors is an integer number (3572154432).

Almost surely, 280774917795 is an apocalyptic number.

80774917795 is a deficient number, since it is larger than the sum of its proper divisors (33534024029).

80774917795 is a wasteful number, since it uses less digits than its factorization.

80774917795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429843.

The product of its (nonzero) digits is 31116960, while the sum is 64.

The spelling of 80774917795 in words is "eighty billion, seven hundred seventy-four million, nine hundred seventeen thousand, seven hundred ninety-five".

Divisors: 1 5 11 13 55 65 143 263 715 1315 2893 3419 14465 17095 37609 188045 429551 2147755 4725061 5584163 23625305 27920815 61425793 112971913 307128965 564859565 1242691043 1468634869 6213455215 7343174345 16154983559 80774917795