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268276920 = 23352235641
BaseRepresentation
bin11111111110110…
…01010010111000
3200200210212202020
433333121102320
51022134330140
642342034440
76435213312
oct1777312270
9620725666
10268276920
1112848746a
1275a18a20
1343771752
14278b67b2
15188446d0
hexffd94b8

268276920 has 32 divisors (see below), whose sum is σ = 804831120. Its totient is φ = 71540480.

The previous prime is 268276919. The next prime is 268276951. The reversal of 268276920 is 29672862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117701 + ... + 1117940.

Almost surely, 2268276920 is an apocalyptic number.

268276920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268276920 is an abundant number, since it is smaller than the sum of its proper divisors (536554200).

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

268276920 is a wasteful number, since it uses less digits than its factorization.

268276920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235655 (or 2235651 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 268276920 is about 16379.1611506817. The cubic root of 268276920 is about 644.9525594577.

The spelling of 268276920 in words is "two hundred sixty-eight million, two hundred seventy-six thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 2235641 4471282 6706923 8942564 11178205 13413846 17885128 22356410 26827692 33534615 44712820 53655384 67069230 89425640 134138460 268276920