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80039817 = 32111362191
BaseRepresentation
bin1001100010101…
…00111110001001
312120121102222200
410301110332021
5130442233232
611535310413
71661220144
oct461247611
9176542880
1080039817
11411a9110
122297b409
1313775550
14a8b705b
15706077c
hex4c54f89

80039817 has 24 divisors (see below), whose sum is σ = 135827328. Its totient is φ = 44776800.

The previous prime is 80039809. The next prime is 80039819. The reversal of 80039817 is 71893008.

It is not a de Polignac number, because 80039817 - 23 = 80039809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80039819) 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 23 ways as a sum of consecutive naturals, for example, 29809 + ... + 32382.

It is an arithmetic number, because the mean of its divisors is an integer number (5659472).

Almost surely, 280039817 is an apocalyptic number.

It is an amenable number.

80039817 is a deficient number, since it is larger than the sum of its proper divisors (55787511).

80039817 is a wasteful number, since it uses less digits than its factorization.

80039817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62221 (or 62218 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 80039817 is about 8946.4974710777. The cubic root of 80039817 is about 430.9584120882.

The spelling of 80039817 in words is "eighty million, thirty-nine thousand, eight hundred seventeen".

Divisors: 1 3 9 11 13 33 39 99 117 143 429 1287 62191 186573 559719 684101 808483 2052303 2425449 6156909 7276347 8893313 26679939 80039817