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79760976020 = 22511257412
BaseRepresentation
bin100101001001000011…
…1111110100010010100
321121212200100101201222
41022102013332202110
52301322302213040
6100350334305512
75522360052455
oct1122207764224
9247780311658
1079760976020
113090aa9a900
121355b958298
1376a17662cb
143c0911912c
15211c506bb5
hex12921fe894

79760976020 has 54 divisors (see below), whose sum is σ = 184141501278. Its totient is φ = 28998939200.

The previous prime is 79760976013. The next prime is 79760976037. The reversal of 79760976020 is 2067906797.

It can be written as a sum of positive squares in 3 ways, for example, as 7970204176 + 71790771844 = 89276^2 + 267938^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13890350 + ... + 13896090.

Almost surely, 279760976020 is an apocalyptic number.

It is an amenable number.

79760976020 is an abundant number, since it is smaller than the sum of its proper divisors (104380525258).

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

79760976020 is an equidigital number, since it uses as much as digits as its factorization.

79760976020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11513 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 79760976020 in words is "seventy-nine billion, seven hundred sixty million, nine hundred seventy-six thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 5741 11482 22964 28705 57410 63151 114820 126302 252604 315755 631510 694661 1263020 1389322 2778644 3473305 6946610 13893220 32959081 65918162 131836324 164795405 329590810 362549891 659181620 725099782 1450199564 1812749455 3625498910 3988048801 7250997820 7976097602 15952195204 19940244005 39880488010 79760976020