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80726494 = 2179225493
BaseRepresentation
bin1001100111111…
…00100111011110
312121220022221011
410303330213132
5131131221434
612002125434
72000110132
oct463744736
9177808834
1080726494
1141628012
122305087a
1313955c74
14aa153c2
157148e64
hex4cfc9de

80726494 has 8 divisors (see below), whose sum is σ = 121766760. Its totient is φ = 40137576.

The previous prime is 80726479. The next prime is 80726501. The reversal of 80726494 is 49462708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112389 + ... + 113104.

It is an arithmetic number, because the mean of its divisors is an integer number (15220845).

Almost surely, 280726494 is an apocalyptic number.

80726494 is a deficient number, since it is larger than the sum of its proper divisors (41040266).

80726494 is a wasteful number, since it uses less digits than its factorization.

80726494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225674.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 80726494 is about 8984.7923737836. The cubic root of 80726494 is about 432.1873294499.

The spelling of 80726494 in words is "eighty million, seven hundred twenty-six thousand, four hundred ninety-four".

Divisors: 1 2 179 358 225493 450986 40363247 80726494