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80742918075 = 3527611414681
BaseRepresentation
bin100101100110010100…
…1110010011110111011
321201102010001020000020
41023030221302132323
52310330141334300
6101032012541523
75555612323341
oct1131451623673
9251363036006
1080742918075
11312742aa466
12137947818a3
1377ca020001
143c9d6c5991
15217881c8a0
hex12cca727bb

80742918075 has 24 divisors (see below), whose sum is σ = 133670472816. Its totient is φ = 43006272000.

The previous prime is 80742918023. The next prime is 80742918119. The reversal of 80742918075 is 57081924708.

It is not a de Polignac number, because 80742918075 - 213 = 80742909883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 650266 + ... + 764415.

It is an arithmetic number, because the mean of its divisors is an integer number (5569603034).

Almost surely, 280742918075 is an apocalyptic number.

80742918075 is a deficient number, since it is larger than the sum of its proper divisors (52927554741).

80742918075 is a wasteful number, since it uses less digits than its factorization.

80742918075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415455 (or 1415450 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 80742918075 in words is "eighty billion, seven hundred forty-two million, nine hundred eighteen thousand, seventy-five".

Divisors: 1 3 5 15 25 75 761 2283 3805 11415 19025 57075 1414681 4244043 7073405 21220215 35367025 106101075 1076572241 3229716723 5382861205 16148583615 26914306025 80742918075