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204053623 = 617330719
BaseRepresentation
bin11000010100110…
…01110001110111
3112012221222221121
430022121301313
5404214203443
632125324411
75025266344
oct1412316167
9465858847
10204053623
11a5201564
1258406707
13333763b7
141d1597cb
1512daa4ed
hexc299c77

204053623 has 4 divisors (see below), whose sum is σ = 204384960. Its totient is φ = 203722288.

The previous prime is 204053621. The next prime is 204053627. The reversal of 204053623 is 326350402.

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 204053623 - 21 = 204053621 is a prime.

It is a super-2 number, since 2×2040536232 = 83275762118852258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204053621) 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, 164743 + ... + 165976.

It is an arithmetic number, because the mean of its divisors is an integer number (51096240).

Almost surely, 2204053623 is an apocalyptic number.

204053623 is a deficient number, since it is larger than the sum of its proper divisors (331337).

204053623 is an equidigital number, since it uses as much as digits as its factorization.

204053623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331336.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 204053623 is about 14284.7339142177. The cubic root of 204053623 is about 588.7281065841.

The spelling of 204053623 in words is "two hundred four million, fifty-three thousand, six hundred twenty-three".

Divisors: 1 617 330719 204053623