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80932577280 = 213351724353
BaseRepresentation
bin100101101011111110…
…1010010000000000000
321201220022220220112020
41023113331102000000
52311222214433110
6101102510001440
75563404361542
oct1132775220000
9251808826466
1080932577280
113136136a205
12138281a6280
13782a3c65a9
143cba975692
15218a2d2d70
hex12d7f52000

80932577280 has 672 divisors, whose sum is σ = 286806826944. Its totient is φ = 19465764864.

The previous prime is 80932577279. The next prime is 80932577309. The reversal of 80932577280 is 8277523908.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1527029734 + ... + 1527029786.

Almost surely, 280932577280 is an apocalyptic number.

80932577280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80932577280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143403413472).

80932577280 is an abundant number, since it is smaller than the sum of its proper divisors (205874249664).

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

80932577280 is a wasteful number, since it uses less digits than its factorization.

80932577280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 80932577280 in words is "eighty billion, nine hundred thirty-two million, five hundred seventy-seven thousand, two hundred eighty".