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268506888 = 23313860599
BaseRepresentation
bin10000000000010…
…001011100001000
3200201020120012120
4100000101130020
51022214210023
642351011240
76440161626
oct2000213410
9621216176
10268506888
11128624221
1275b09b20
1343822320
1427936516
151888c8e3
hex10011708

268506888 has 32 divisors (see below), whose sum is σ = 722904000. Its totient is φ = 82617408.

The previous prime is 268506883. The next prime is 268506937. The reversal of 268506888 is 888605862.

It is a self number, because there is not a number n which added to its sum of digits gives 268506888.

It is not an unprimeable number, because it can be changed into a prime (268506883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429988 + ... + 430611.

It is an arithmetic number, because the mean of its divisors is an integer number (22590750).

Almost surely, 2268506888 is an apocalyptic number.

It is an amenable number.

268506888 is an abundant number, since it is smaller than the sum of its proper divisors (454397112).

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

268506888 is a wasteful number, since it uses less digits than its factorization.

268506888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860621 (or 860617 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The square root of 268506888 is about 16386.1797866373. The cubic root of 268506888 is about 645.1367920915.

The spelling of 268506888 in words is "two hundred sixty-eight million, five hundred six thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 860599 1721198 2581797 3442396 5163594 6884792 10327188 11187787 20654376 22375574 33563361 44751148 67126722 89502296 134253444 268506888