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204674680 = 2357838807
BaseRepresentation
bin11000011001100…
…01011001111000
3112021010112212201
430030301121320
5404344042210
632150515544
75033464120
oct1414613170
9467115781
10204674680
11a5596131
1258665bb4
1333532ca2
141d27bc80
1512e7e53a
hexc331678

204674680 has 64 divisors (see below), whose sum is σ = 532707840. Its totient is φ = 69320832.

The previous prime is 204674653. The next prime is 204674681. The reversal of 204674680 is 86476402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204674681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18837 + ... + 27643.

It is an arithmetic number, because the mean of its divisors is an integer number (8323560).

Almost surely, 2204674680 is an apocalyptic number.

204674680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204674680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266353920).

204674680 is an abundant number, since it is smaller than the sum of its proper divisors (328033160).

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

204674680 is a wasteful number, since it uses less digits than its factorization.

204674680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8904 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 204674680 is about 14306.4558853687. The cubic root of 204674680 is about 589.3247853477.

The spelling of 204674680 in words is "two hundred four million, six hundred seventy-four thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 83 140 166 280 332 415 581 664 830 1162 1660 2324 2905 3320 4648 5810 8807 11620 17614 23240 35228 44035 61649 70456 88070 123298 176140 246596 308245 352280 493192 616490 730981 1232980 1461962 2465960 2923924 3654905 5116867 5847848 7309810 10233734 14619620 20467468 25584335 29239240 40934936 51168670 102337340 204674680