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204834680 = 23519925733
BaseRepresentation
bin11000011010110…
…00011101111000
3112021102200100122
430031120131320
5404414202210
632154152412
75035031441
oct1415303570
9467380318
10204834680
11a5695366
1258722708
133358aa6b
141d2c02c8
1512eb1b55
hexc358778

204834680 has 32 divisors (see below), whose sum is σ = 463212000. Its totient is φ = 81518976.

The previous prime is 204834677. The next prime is 204834697. The reversal of 204834680 is 86438402.

204834680 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2048346802 = 83914492261404800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204834680.

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, 4907 + ... + 20826.

It is an arithmetic number, because the mean of its divisors is an integer number (14475375).

Almost surely, 2204834680 is an apocalyptic number.

204834680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204834680 is an abundant number, since it is smaller than the sum of its proper divisors (258377320).

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

204834680 is a wasteful number, since it uses less digits than its factorization.

204834680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25943 (or 25939 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 204834680 is about 14312.0466740435. The cubic root of 204834680 is about 589.4783093141.

The spelling of 204834680 in words is "two hundred four million, eight hundred thirty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 25733 51466 102932 128665 205864 257330 514660 1029320 5120867 10241734 20483468 25604335 40966936 51208670 102417340 204834680