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204216 = 23367127
BaseRepresentation
bin110001110110111000
3101101010120
4301312320
523013331
64213240
71510245
oct616670
9341116
10204216
1112a481
129a220
1371c4c
14545cc
1540796
hex31db8

204216 has 32 divisors (see below), whose sum is σ = 522240. Its totient is φ = 66528.

The previous prime is 204173. The next prime is 204233. The reversal of 204216 is 612402.

It is a junction number, because it is equal to n+sod(n) for n = 204195 and 204204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (16320).

2204216 is an apocalyptic number.

It is an amenable number.

204216 is an abundant number, since it is smaller than the sum of its proper divisors (318024).

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

204216 is a wasteful number, since it uses less digits than its factorization.

204216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204216 is about 451.9026443826. The cubic root of 204216 is about 58.8884226589. Note that the first 3 decimals are identical.

Adding to 204216 its reverse (612402), we get a palindrome (816618).

The spelling of 204216 in words is "two hundred four thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 67 127 134 201 254 268 381 402 508 536 762 804 1016 1524 1608 3048 8509 17018 25527 34036 51054 68072 102108 204216