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268434384 = 24350910987
BaseRepresentation
bin11111111111111…
…11101111010000
3200201002212202020
433333333233100
51022204400014
642345251440
76436440351
oct1777775720
9621085666
10268434384
111285847a9
1275a93b80
13437c831a
1427917d28
15188761a9
hexffffbd0

268434384 has 40 divisors (see below), whose sum is σ = 694881120. Its totient is φ = 89294208.

The previous prime is 268434373. The next prime is 268434389. The reversal of 268434384 is 483434862.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268434389) 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, 18939 + ... + 29925.

It is an arithmetic number, because the mean of its divisors is an integer number (17372028).

Almost surely, 2268434384 is an apocalyptic number.

268434384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

268434384 is an abundant number, since it is smaller than the sum of its proper divisors (426446736).

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

268434384 is a wasteful number, since it uses less digits than its factorization.

268434384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507 (or 11501 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

The square root of 268434384 is about 16383.9672851236. The cubic root of 268434384 is about 645.0787188342.

The spelling of 268434384 in words is "two hundred sixty-eight million, four hundred thirty-four thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 509 1018 1527 2036 3054 4072 6108 8144 10987 12216 21974 24432 32961 43948 65922 87896 131844 175792 263688 527376 5592383 11184766 16777149 22369532 33554298 44739064 67108596 89478128 134217192 268434384