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268942784 = 2611382021
BaseRepresentation
bin10000000001111…
…011110111000000
3200202001201010212
4100001323313000
51022322132114
642404213252
76443655515
oct2001736700
9622051125
10268942784
111288a1770
127609a228
1343945856
1427a0b30c
1518926b3e
hex1007bdc0

268942784 has 28 divisors (see below), whose sum is σ = 582201528. Its totient is φ = 122246400.

The previous prime is 268942759. The next prime is 268942787. The reversal of 268942784 is 487249862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268942787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190307 + ... + 191714.

Almost surely, 2268942784 is an apocalyptic number.

It is an amenable number.

268942784 is an abundant number, since it is smaller than the sum of its proper divisors (313258744).

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

268942784 is a wasteful number, since it uses less digits than its factorization.

268942784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382044 (or 382034 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 268942784 is about 16399.4751135517. The cubic root of 268942784 is about 645.4857099065.

The spelling of 268942784 in words is "two hundred sixty-eight million, nine hundred forty-two thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 382021 764042 1528084 3056168 4202231 6112336 8404462 12224672 16808924 24449344 33617848 67235696 134471392 268942784