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80404800525 = 3352789263727
BaseRepresentation
bin100101011100001111…
…1111110010000001101
321200112112211001221000
41022320133332100031
52304132112104100
6100534253530513
75544335346030
oct1127037762015
9250475731830
1080404800525
1131110460775
12136bb4a3a39
137774c6745a
143c6a82d017
152158cce900
hex12b87fe40d

80404800525 has 192 divisors, whose sum is σ = 171589017600. Its totient is φ = 36155496960.

The previous prime is 80404800521. The next prime is 80404800587. The reversal of 80404800525 is 52500840408.

It is not a de Polignac number, because 80404800525 - 22 = 80404800521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80404800525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80404800521) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 110597712 + ... + 110598438.

It is an arithmetic number, because the mean of its divisors is an integer number (893692800).

Almost surely, 280404800525 is an apocalyptic number.

It is an amenable number.

80404800525 is an abundant number, since it is smaller than the sum of its proper divisors (91184217075).

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

80404800525 is a wasteful number, since it uses less digits than its factorization.

80404800525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 80404800525 in words is "eighty billion, four hundred four million, eight hundred thousand, five hundred twenty-five".