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204102 = 232172329
BaseRepresentation
bin110001110101000110
3101100222100
4301311012
523012402
64212530
71510023
oct616506
9340870
10204102
1112a388
129a146
1371b92
145454a
154071c
hex31d46

204102 has 48 divisors (see below), whose sum is σ = 505440. Its totient is φ = 59136.

The previous prime is 204101. The next prime is 204107. The reversal of 204102 is 201402.

Adding to 204102 its reverse (201402), we get a palindrome (405504).

204102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7024 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (10530).

2204102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252720).

204102 is an abundant number, since it is smaller than the sum of its proper divisors (301338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204102 is a wasteful number, since it uses less digits than its factorization.

204102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 204102 is about 451.7764934124. The cubic root of 204102 is about 58.8774628096.

The spelling of 204102 in words is "two hundred four thousand, one hundred two", and thus it is an iban number.

Divisors: 1 2 3 6 9 17 18 23 29 34 46 51 58 69 87 102 138 153 174 207 261 306 391 414 493 522 667 782 986 1173 1334 1479 2001 2346 2958 3519 4002 4437 6003 7038 8874 11339 12006 22678 34017 68034 102051 204102