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80979339126 = 2372318885159
BaseRepresentation
bin100101101101010111…
…1101010011101110110
321202000120220122201110
41023122233222131312
52311321202323001
6101111300135450
75564513011500
oct1133257523566
9252016818643
1080979339126
11313857a9064
121383b997586
137836cb9b1a
143cc2c68d70
15218e46d3d6
hex12dabea776

80979339126 has 48 divisors (see below), whose sum is σ = 194478382080. Its totient is φ = 22390598160.

The previous prime is 80979339083. The next prime is 80979339169. The reversal of 80979339126 is 62193397908.

It is an interprime number because it is at equal distance from previous prime (80979339083) and next prime (80979339169).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4433466 + ... + 4451693.

It is an arithmetic number, because the mean of its divisors is an integer number (4051632960).

Almost surely, 280979339126 is an apocalyptic number.

80979339126 is an abundant number, since it is smaller than the sum of its proper divisors (113499042954).

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

80979339126 is a wasteful number, since it uses less digits than its factorization.

80979339126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885209 (or 8885202 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 80979339126 in words is "eighty billion, nine hundred seventy-nine million, three hundred thirty-nine thousand, one hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 31 42 49 62 93 98 147 186 217 294 434 651 1302 1519 3038 4557 9114 8885159 17770318 26655477 53310954 62196113 124392226 186588339 275439929 373176678 435372791 550879858 826319787 870745582 1306118373 1652639574 1928079503 2612236746 3856159006 5784238509 11568477018 13496556521 26993113042 40489669563 80979339126