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80104839 = 341963727
BaseRepresentation
bin1001100011001…
…00110110000111
312120201202011220
410301210312013
5131001323324
611540531423
71661610543
oct461446607
9176652156
1080104839
1141242a51
12229b0b73
1313799019
14a8d2a23
157074b79
hex4c64d87

80104839 has 8 divisors (see below), whose sum is σ = 107063040. Its totient is φ = 53274936.

The previous prime is 80104823. The next prime is 80104847. The reversal of 80104839 is 93840108.

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

It is not a de Polignac number, because 80104839 - 24 = 80104823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80104879) 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, 30607 + ... + 33120.

It is an arithmetic number, because the mean of its divisors is an integer number (13382880).

Almost surely, 280104839 is an apocalyptic number.

80104839 is a deficient number, since it is larger than the sum of its proper divisors (26958201).

80104839 is a wasteful number, since it uses less digits than its factorization.

80104839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64149.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 80104839 is about 8950.1306694372. The cubic root of 80104839 is about 431.0750798265.

The spelling of 80104839 in words is "eighty million, one hundred four thousand, eight hundred thirty-nine".

Divisors: 1 3 419 1257 63727 191181 26701613 80104839