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204620828 = 22281182047
BaseRepresentation
bin11000011001001…
…00010000011100
3112021000211000012
430030210100130
5404340331303
632145422352
75033151116
oct1414442034
9467024005
10204620828
11a5559725
125863a9b8
1333514619
141d2663b6
1512e6d5d8
hexc32441c

204620828 has 12 divisors (see below), whose sum is σ = 359362752. Its totient is φ = 101945760.

The previous prime is 204620827. The next prime is 204620831. The reversal of 204620828 is 828026402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204620794 and 204620803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204620827) 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, 89900 + ... + 92147.

It is an arithmetic number, because the mean of its divisors is an integer number (29946896).

Almost surely, 2204620828 is an apocalyptic number.

It is an amenable number.

204620828 is a deficient number, since it is larger than the sum of its proper divisors (154741924).

204620828 is a wasteful number, since it uses less digits than its factorization.

204620828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182332 (or 182330 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 204620828 is about 14304.5736741785. The cubic root of 204620828 is about 589.2730950228.

The spelling of 204620828 in words is "two hundred four million, six hundred twenty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 281 562 1124 182047 364094 728188 51155207 102310414 204620828