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104109361 = 569182969
BaseRepresentation
bin1100011010010…
…01010100110001
321020220022012021
412031021110301
5203122444421
614155231441
72402625556
oct615112461
9236808167
10104109361
11538489a4
122aa48581
1318752095
14db80a2d
159217341
hex6349531

104109361 has 4 divisors (see below), whose sum is σ = 104292900. Its totient is φ = 103925824.

The previous prime is 104109347. The next prime is 104109367. The reversal of 104109361 is 163901401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163901401 = 523313387.

It can be written as a sum of positive squares in 2 ways, for example, as 45495025 + 58614336 = 6745^2 + 7656^2 .

It is a cyclic number.

It is not a de Polignac number, because 104109361 - 25 = 104109329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104109367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90916 + ... + 92053.

It is an arithmetic number, because the mean of its divisors is an integer number (26073225).

Almost surely, 2104109361 is an apocalyptic number.

It is an amenable number.

104109361 is a deficient number, since it is larger than the sum of its proper divisors (183539).

104109361 is an equidigital number, since it uses as much as digits as its factorization.

104109361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183538.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 104109361 is about 10203.3994825254. The cubic root of 104109361 is about 470.4317158981.

The spelling of 104109361 in words is "one hundred four million, one hundred nine thousand, three hundred sixty-one".

Divisors: 1 569 182969 104109361