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104442605 = 520888521
BaseRepresentation
bin1100011100110…
…10101011101101
321021112020022122
412032122223231
5203214130410
614210322325
72405514251
oct616325355
9237466278
10104442605
1153a56303
122ab893a5
131883a977
14dc2a261
159280e55
hex639aaed

104442605 has 4 divisors (see below), whose sum is σ = 125331132. Its totient is φ = 83554080.

The previous prime is 104442589. The next prime is 104442607. The reversal of 104442605 is 506244401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33512521 + 70930084 = 5789^2 + 8422^2 .

It is not a de Polignac number, because 104442605 - 24 = 104442589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104442607) 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, 10444256 + ... + 10444265.

It is an arithmetic number, because the mean of its divisors is an integer number (31332783).

Almost surely, 2104442605 is an apocalyptic number.

It is an amenable number.

104442605 is a deficient number, since it is larger than the sum of its proper divisors (20888527).

104442605 is an equidigital number, since it uses as much as digits as its factorization.

104442605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20888526.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 104442605 is about 10219.7164833473. The cubic root of 104442605 is about 470.9331167810.

The spelling of 104442605 in words is "one hundred four million, four hundred forty-two thousand, six hundred five".

Divisors: 1 5 20888521 104442605