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204355013 = 1947228841
BaseRepresentation
bin11000010111000…
…11010111000101
3112020112022101012
430023203113011
5404303330023
632140012005
75030663132
oct1413432705
9466468335
10204355013
11a5397a45
1258531005
1333450635
141d1d7589
1512e19978
hexc2e35c5

204355013 has 8 divisors (see below), whose sum is σ = 219688320. Its totient is φ = 189479520.

The previous prime is 204355003. The next prime is 204355027. The reversal of 204355013 is 310553402.

204355013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204355013 - 26 = 204354949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204355013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204355003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113528 + ... + 115313.

It is an arithmetic number, because the mean of its divisors is an integer number (27461040).

Almost surely, 2204355013 is an apocalyptic number.

It is an amenable number.

204355013 is a deficient number, since it is larger than the sum of its proper divisors (15333307).

204355013 is a wasteful number, since it uses less digits than its factorization.

204355013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228907.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 204355013 is about 14295.2793956607. The cubic root of 204355013 is about 589.0178171582.

The spelling of 204355013 in words is "two hundred four million, three hundred fifty-five thousand, thirteen".

Divisors: 1 19 47 893 228841 4347979 10755527 204355013