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207680568 = 233171513371
BaseRepresentation
bin11000110000011…
…11010000111000
3112110210021011220
430120033100320
5411131234233
632335152040
75101153464
oct1430172070
9473707156
10207680568
11a7259537
1259675620
1334046214
141d8214a4
1513374eb3
hexc60f438

207680568 has 64 divisors (see below), whose sum is σ = 553547520. Its totient is φ = 64704000.

The previous prime is 207680567. The next prime is 207680573. The reversal of 207680568 is 865086702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207680567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59923 + ... + 63293.

It is an arithmetic number, because the mean of its divisors is an integer number (8649180).

Almost surely, 2207680568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207680568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276773760).

207680568 is an abundant number, since it is smaller than the sum of its proper divisors (345866952).

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

207680568 is a wasteful number, since it uses less digits than its factorization.

207680568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548 (or 3544 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 207680568 is about 14411.1265347300. The cubic root of 207680568 is about 592.1957518588.

The spelling of 207680568 in words is "two hundred seven million, six hundred eighty thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 151 204 302 408 453 604 906 1208 1812 2567 3371 3624 5134 6742 7701 10113 10268 13484 15402 20226 20536 26968 30804 40452 57307 61608 80904 114614 171921 229228 343842 458456 509021 687684 1018042 1375368 1527063 2036084 3054126 4072168 6108252 8653357 12216504 17306714 25960071 34613428 51920142 69226856 103840284 207680568