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80490588 = 2236707549
BaseRepresentation
bin1001100110000…
…11000001011100
312121110100022220
410303003001130
5131101144323
611553105340
71665105303
oct463030134
9177410286
1080490588
1141486852
1222b58250
13138a2789
14a99343a
1570ee0e3
hex4cc305c

80490588 has 12 divisors (see below), whose sum is σ = 187811400. Its totient is φ = 26830192.

The previous prime is 80490583. The next prime is 80490607. The reversal of 80490588 is 88509408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80490583) 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, 3353763 + ... + 3353786.

It is an arithmetic number, because the mean of its divisors is an integer number (15650950).

Almost surely, 280490588 is an apocalyptic number.

It is an amenable number.

80490588 is an abundant number, since it is smaller than the sum of its proper divisors (107320812).

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

80490588 is a wasteful number, since it uses less digits than its factorization.

80490588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707556 (or 6707554 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 80490588 is about 8971.6546968773. The cubic root of 80490588 is about 431.7659268631.

The spelling of 80490588 in words is "eighty million, four hundred ninety thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 6707549 13415098 20122647 26830196 40245294 80490588