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80494580 = 2254024729
BaseRepresentation
bin1001100110000…
…11111111110100
312121110112210202
410303003333310
5131101311310
611553140032
71665123035
oct463037764
9177415722
1080494580
1141489851
1222b5a618
13138a453a
14a994a8c
1571003a5
hex4cc3ff4

80494580 has 12 divisors (see below), whose sum is σ = 169038660. Its totient is φ = 32197824.

The previous prime is 80494571. The next prime is 80494607. The reversal of 80494580 is 8549408.

It can be written as a sum of positive squares in 2 ways, for example, as 52911076 + 27583504 = 7274^2 + 5252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012345 + ... + 2012384.

It is an arithmetic number, because the mean of its divisors is an integer number (14086555).

Almost surely, 280494580 is an apocalyptic number.

It is an amenable number.

80494580 is an abundant number, since it is smaller than the sum of its proper divisors (88544080).

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

80494580 is a wasteful number, since it uses less digits than its factorization.

80494580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024738 (or 4024736 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 80494580 is about 8971.8771725877. The cubic root of 80494580 is about 431.7730646793.

The spelling of 80494580 in words is "eighty million, four hundred ninety-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 4024729 8049458 16098916 20123645 40247290 80494580