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268308966 = 23138132381
BaseRepresentation
bin11111111111000…
…01000111100110
3200200212111201010
433333201013212
51022141341331
642342443050
76435405612
oct1777410746
9620774633
10268308966
111284a9552
1275a33486
1343783203
14278c4342
151884de46
hexffe11e6

268308966 has 16 divisors (see below), whose sum is σ = 537023088. Its totient is φ = 89368800.

The previous prime is 268308913. The next prime is 268308967. The reversal of 268308966 is 669803862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268308967) 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, 7905 + ... + 24476.

It is an arithmetic number, because the mean of its divisors is an integer number (33563943).

Almost surely, 2268308966 is an apocalyptic number.

268308966 is an abundant number, since it is smaller than the sum of its proper divisors (268714122).

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

268308966 is a wasteful number, since it uses less digits than its factorization.

268308966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33767.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 268308966 is about 16380.1393766964. The cubic root of 268308966 is about 644.9782385543.

The spelling of 268308966 in words is "two hundred sixty-eight million, three hundred eight thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 1381 2762 4143 8286 32381 64762 97143 194286 44718161 89436322 134154483 268308966