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104983139 = 811129449
BaseRepresentation
bin1100100000111…
…10101001100011
321022112200210102
412100132221203
5203333430024
614230053015
72413225202
oct620365143
9238480712
10104983139
1154295428
122b1aa16b
1318999a01
14dd2b239
15933b1ae
hex641ea63

104983139 has 4 divisors (see below), whose sum is σ = 105113400. Its totient is φ = 104852880.

The previous prime is 104983093. The next prime is 104983141. The reversal of 104983139 is 931389401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104983139 - 220 = 103934563 is a prime.

It is a super-2 number, since 2×1049831392 = 22042918948586642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104983169) 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 3 ways as a sum of consecutive naturals, for example, 63914 + ... + 65535.

It is an arithmetic number, because the mean of its divisors is an integer number (26278350).

Almost surely, 2104983139 is an apocalyptic number.

104983139 is a deficient number, since it is larger than the sum of its proper divisors (130261).

104983139 is an equidigital number, since it uses as much as digits as its factorization.

104983139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130260.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 104983139 is about 10246.1280003717. The cubic root of 104983139 is about 471.7441442868.

The spelling of 104983139 in words is "one hundred four million, nine hundred eighty-three thousand, one hundred thirty-nine".

Divisors: 1 811 129449 104983139