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268393775 = 5213825827
BaseRepresentation
bin11111111111101…
…01110100101111
3200201000211001012
433333311310233
51022202100100
642344335435
76436211066
oct1777656457
9621024035
10268393775
11128557241
1275a7457b
13437b29b0
14279071dd
1518869135
hexfff5d2f

268393775 has 12 divisors (see below), whose sum is σ = 358409352. Its totient is φ = 198198240.

The previous prime is 268393709. The next prime is 268393781. The reversal of 268393775 is 577393862.

It is a happy number.

It is not a de Polignac number, because 268393775 - 28 = 268393519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412589 + ... + 413238.

It is an arithmetic number, because the mean of its divisors is an integer number (29867446).

Almost surely, 2268393775 is an apocalyptic number.

268393775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

268393775 is a deficient number, since it is larger than the sum of its proper divisors (90015577).

268393775 is a wasteful number, since it uses less digits than its factorization.

268393775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825850 (or 825845 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 268393775 is about 16382.7279474451. The cubic root of 268393775 is about 645.0461878268.

The spelling of 268393775 in words is "two hundred sixty-eight million, three hundred ninety-three thousand, seven hundred seventy-five".

Divisors: 1 5 13 25 65 325 825827 4129135 10735751 20645675 53678755 268393775