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104861291 = 244742853
BaseRepresentation
bin1100100000000…
…00111001101011
321022022111122112
412100000321223
5203321030131
614223312535
72412210023
oct620007153
9238274575
10104861291
1154211927
122b14b74b
1318956402
14dcd8a83
15931502b
hex6400e6b

104861291 has 4 divisors (see below), whose sum is σ = 104906592. Its totient is φ = 104815992.

The previous prime is 104861261. The next prime is 104861297. The reversal of 104861291 is 192168401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104861291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104861297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18980 + ... + 23873.

It is an arithmetic number, because the mean of its divisors is an integer number (26226648).

Almost surely, 2104861291 is an apocalyptic number.

104861291 is a deficient number, since it is larger than the sum of its proper divisors (45301).

104861291 is an equidigital number, since it uses as much as digits as its factorization.

104861291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45300.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 104861291 is about 10240.1802230234. The cubic root of 104861291 is about 471.5615647039.

The spelling of 104861291 in words is "one hundred four million, eight hundred sixty-one thousand, two hundred ninety-one".

Divisors: 1 2447 42853 104861291