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204157144 = 2325519643
BaseRepresentation
bin11000010101100…
…11000011011000
3112020011020221201
430022303003120
5404231012034
632131443544
75026210222
oct1412630330
9466136851
10204157144
11a5272314
12584565b4
13333b1559
141d185412
1512dcb014
hexc2b30d8

204157144 has 8 divisors (see below), whose sum is σ = 382794660. Its totient is φ = 102078568.

The previous prime is 204157141. The next prime is 204157153. The reversal of 204157144 is 441751402.

204157144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204157141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12759814 + ... + 12759829.

Almost surely, 2204157144 is an apocalyptic number.

It is an amenable number.

204157144 is a deficient number, since it is larger than the sum of its proper divisors (178637516).

204157144 is a wasteful number, since it uses less digits than its factorization.

204157144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25519649 (or 25519645 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 204157144 is about 14288.3569384307. The cubic root of 204157144 is about 588.8276480967.

The spelling of 204157144 in words is "two hundred four million, one hundred fifty-seven thousand, one hundred forty-four".

Divisors: 1 2 4 8 25519643 51039286 102078572 204157144