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104052209 = 203951031
BaseRepresentation
bin1100011001110…
…11010111110001
321020210101210112
412030323113301
5203114132314
614154111105
72402300132
oct614732761
9236711715
10104052209
1153809a68
122aa1b495
1318732071
14db67c89
15920543e
hex633b5f1

104052209 has 4 divisors (see below), whose sum is σ = 104105280. Its totient is φ = 103999140.

The previous prime is 104052149. The next prime is 104052233. The reversal of 104052209 is 902250401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104052209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104052239) 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, 23477 + ... + 27554.

It is an arithmetic number, because the mean of its divisors is an integer number (26026320).

Almost surely, 2104052209 is an apocalyptic number.

It is an amenable number.

104052209 is a deficient number, since it is larger than the sum of its proper divisors (53071).

104052209 is an equidigital number, since it uses as much as digits as its factorization.

104052209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53070.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 104052209 is about 10200.5984628354. The cubic root of 104052209 is about 470.3456172211.

The spelling of 104052209 in words is "one hundred four million, fifty-two thousand, two hundred nine".

Divisors: 1 2039 51031 104052209