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268988876 = 221331116633
BaseRepresentation
bin10000000010000…
…111000111001100
3200202011001100222
4100002013013030
51022330121001
642405210512
76444240062
oct2002070714
9622131328
10268988876
11128923362
1276100a38
1343960820
1427a20032
151893561b
hex100871cc

268988876 has 24 divisors (see below), whose sum is σ = 508601184. Its totient is φ = 123742080.

The previous prime is 268988873. The next prime is 268988893. The reversal of 268988876 is 678889862.

It is not an unprimeable number, because it can be changed into a prime (268988873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7856 + ... + 24488.

It is an arithmetic number, because the mean of its divisors is an integer number (21191716).

Almost surely, 2268988876 is an apocalyptic number.

268988876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

268988876 is a deficient number, since it is larger than the sum of its proper divisors (239612308).

268988876 is a wasteful number, since it uses less digits than its factorization.

268988876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961 (or 16959 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 62.

The square root of 268988876 is about 16400.8803422255. The cubic root of 268988876 is about 645.5225827157.

The spelling of 268988876 in words is "two hundred sixty-eight million, nine hundred eighty-eight thousand, eight hundred seventy-six".

Divisors: 1 2 4 13 26 52 311 622 1244 4043 8086 16172 16633 33266 66532 216229 432458 864916 5172863 10345726 20691452 67247219 134494438 268988876