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268886900 = 22522688869
BaseRepresentation
bin10000000001101…
…110001101110100
3200201221212111002
4100001232031310
51022313340100
642403102432
76443333552
oct2001561564
9621855432
10268886900
11128863787
1276071a18
1343926299
14279d4bd2
15189152d5
hex1006e374

268886900 has 18 divisors (see below), whose sum is σ = 583484790. Its totient is φ = 107554720.

The previous prime is 268886887. The next prime is 268886911. The reversal of 268886900 is 9688862.

It can be written as a sum of positive squares in 3 ways, for example, as 320356 + 268566544 = 566^2 + 16388^2 .

It is a super-2 number, since 2×2688869002 = 144600329983220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1344335 + ... + 1344534.

Almost surely, 2268886900 is an apocalyptic number.

268886900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268886900 is an abundant number, since it is smaller than the sum of its proper divisors (314597890).

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

268886900 is a wasteful number, since it uses less digits than its factorization.

268886900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688883 (or 2688876 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 268886900 is about 16397.7711900124. The cubic root of 268886900 is about 645.4409980145.

The spelling of 268886900 in words is "two hundred sixty-eight million, eight hundred eighty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2688869 5377738 10755476 13444345 26888690 53777380 67221725 134443450 268886900