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80299257 = 335417559
BaseRepresentation
bin1001100100101…
…00010011111001
312121002121212120
410302110103321
5131024034012
611545031453
71663350423
oct462242371
9177077776
1080299257
1141366025
1222a85589
131383666c
14a943813
1570b258c
hex4c944f9

80299257 has 8 divisors (see below), whose sum is σ = 107110080. Its totient is φ = 53510640.

The previous prime is 80299243. The next prime is 80299259. The reversal of 80299257 is 75299208.

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

It is not a de Polignac number, because 80299257 - 27 = 80299129 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80299259) by changing a digit.

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, 6844 + ... + 14402.

It is an arithmetic number, because the mean of its divisors is an integer number (13388760).

Almost surely, 280299257 is an apocalyptic number.

It is an amenable number.

80299257 is a deficient number, since it is larger than the sum of its proper divisors (26810823).

80299257 is a wasteful number, since it uses less digits than its factorization.

80299257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11103.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 80299257 is about 8960.9852694891. The cubic root of 80299257 is about 431.4235441834.

The spelling of 80299257 in words is "eighty million, two hundred ninety-nine thousand, two hundred fifty-seven".

Divisors: 1 3 3541 7559 10623 22677 26766419 80299257