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80504724 = 22317394631
BaseRepresentation
bin1001100110001…
…10011110010100
312121111001201110
410303012132110
5131102122344
611553255020
71665164436
oct463063624
9177431643
1080504724
1141496433
1222b64470
13138a9041
14a998656
1571033b9
hex4cc6794

80504724 has 24 divisors (see below), whose sum is σ = 198894528. Its totient is φ = 25256320.

The previous prime is 80504681. The next prime is 80504731. The reversal of 80504724 is 42740508.

It is a junction number, because it is equal to n+sod(n) for n = 80504691 and 80504700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197112 + ... + 197519.

It is an arithmetic number, because the mean of its divisors is an integer number (8287272).

Almost surely, 280504724 is an apocalyptic number.

It is an amenable number.

80504724 is an abundant number, since it is smaller than the sum of its proper divisors (118389804).

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

80504724 is a wasteful number, since it uses less digits than its factorization.

80504724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394655 (or 394653 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 80504724 is about 8972.4424768287. The cubic root of 80504724 is about 431.7912013953.

The spelling of 80504724 in words is "eighty million, five hundred four thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 394631 789262 1183893 1578524 2367786 4735572 6708727 13417454 20126181 26834908 40252362 80504724