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80584780 = 2254029239
BaseRepresentation
bin1001100110110…
…10000001001100
312121122010112111
410303122001030
5131112203110
611555113404
71665650023
oct463320114
9177563474
1080584780
11415405a1
1222ba2864
1313906603
14a9b98ba
15711be8a
hex4cda04c

80584780 has 12 divisors (see below), whose sum is σ = 169228080. Its totient is φ = 32233904.

The previous prime is 80584753. The next prime is 80584789. The reversal of 80584780 is 8748508.

It is not an unprimeable number, because it can be changed into a prime (80584789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2014600 + ... + 2014639.

It is an arithmetic number, because the mean of its divisors is an integer number (14102340).

Almost surely, 280584780 is an apocalyptic number.

It is an amenable number.

80584780 is an abundant number, since it is smaller than the sum of its proper divisors (88643300).

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

80584780 is a wasteful number, since it uses less digits than its factorization.

80584780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029248 (or 4029246 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 80584780 is about 8976.9025838537. The cubic root of 80584780 is about 431.9342821271.

The spelling of 80584780 in words is "eighty million, five hundred eighty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 4029239 8058478 16116956 20146195 40292390 80584780