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204386120 = 23520032551
BaseRepresentation
bin11000010111010…
…10111101001000
3112020120220001022
430023222331020
5404310323440
632140412012
75031152621
oct1413527510
9466526038
10204386120
11a5409354
1258547008
1333461843
141d204a48
1512e23cb5
hexc2eaf48

204386120 has 32 divisors (see below), whose sum is σ = 460278720. Its totient is φ = 81681600.

The previous prime is 204386099. The next prime is 204386167. The reversal of 204386120 is 21683402.

204386120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 204386120.

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, 78845 + ... + 81395.

It is an arithmetic number, because the mean of its divisors is an integer number (14383710).

Almost surely, 2204386120 is an apocalyptic number.

204386120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204386120 is an abundant number, since it is smaller than the sum of its proper divisors (255892600).

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

204386120 is a wasteful number, since it uses less digits than its factorization.

204386120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 204386120 is about 14296.3673707694. The cubic root of 204386120 is about 589.0477024827.

The spelling of 204386120 in words is "two hundred four million, three hundred eighty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2003 2551 4006 5102 8012 10015 10204 12755 16024 20030 20408 25510 40060 51020 80120 102040 5109653 10219306 20438612 25548265 40877224 51096530 102193060 204386120