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268747072 = 26112291667
BaseRepresentation
bin10000000001001…
…100000101000000
3200201200202200021
4100001030011000
51022244401242
642400103224
76442212106
oct2001140500
9621622607
10268747072
11128778720
1276004b14
13438a7749
1427999c76
15188d8b67
hex1004c140

268747072 has 56 divisors (see below), whose sum is σ = 584667360. Its totient is φ = 121551360.

The previous prime is 268747051. The next prime is 268747139. The reversal of 268747072 is 270747862.

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, 160383 + ... + 162049.

Almost surely, 2268747072 is an apocalyptic number.

268747072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268747072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292333680).

268747072 is an abundant number, since it is smaller than the sum of its proper divisors (315920288).

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

268747072 is a wasteful number, since it uses less digits than its factorization.

268747072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 268747072 is about 16393.5070073490. The cubic root of 268747072 is about 645.3290967248.

The spelling of 268747072 in words is "two hundred sixty-eight million, seven hundred forty-seven thousand, seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 229 352 458 704 916 1667 1832 2519 3334 3664 5038 6668 7328 10076 13336 14656 18337 20152 26672 36674 40304 53344 73348 80608 106688 146696 161216 293392 381743 586784 763486 1173568 1526972 3053944 4199173 6107888 8398346 12215776 16796692 24431552 33593384 67186768 134373536 268747072