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204427071 = 342523791
BaseRepresentation
bin11000010111101…
…00111100111111
3112020122222020000
430023310330333
5404313131241
632141325343
75031413202
oct1413647477
9466588200
10204427071
11a54370a2
1258566853
1333477384
141d215939
1512e30eb6
hexc2f4f3f

204427071 has 10 divisors (see below), whose sum is σ = 305378832. Its totient is φ = 136284660.

The previous prime is 204427063. The next prime is 204427073. The reversal of 204427071 is 170724402.

It is a happy number.

It is not a de Polignac number, because 204427071 - 23 = 204427063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204427073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1261815 + ... + 1261976.

Almost surely, 2204427071 is an apocalyptic number.

204427071 is a deficient number, since it is larger than the sum of its proper divisors (100951761).

204427071 is an equidigital number, since it uses as much as digits as its factorization.

204427071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523803 (or 2523794 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 204427071 is about 14297.7995160094. The cubic root of 204427071 is about 589.0870405774.

The spelling of 204427071 in words is "two hundred four million, four hundred twenty-seven thousand, seventy-one".

Divisors: 1 3 9 27 81 2523791 7571373 22714119 68142357 204427071