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268118928 = 243271124181
BaseRepresentation
bin11111111101100…
…10101110010000
3200200111212000200
433332302232100
51022114301203
642334415200
76433654560
oct1776625620
9620455020
10268118928
111283897a0
1275961500
134371786c
1427874da0
15188129a3
hexffb2b90

268118928 has 120 divisors (see below), whose sum is σ = 935553216. Its totient is φ = 69638400.

The previous prime is 268118927. The next prime is 268118947. The reversal of 268118928 is 829811862.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (268118927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1003 + ... + 23178.

Almost surely, 2268118928 is an apocalyptic number.

268118928 is a gapful number since it is divisible by the number (28) 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 268118928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467776608).

268118928 is an abundant number, since it is smaller than the sum of its proper divisors (667434288).

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

268118928 is a wasteful number, since it uses less digits than its factorization.

268118928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24213 (or 24204 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 268118928 is about 16374.3374827808. The cubic root of 268118928 is about 644.8259274261.

It can be divided in two parts, 2681 and 18928, that added together give a square (21609 = 1472).

The spelling of 268118928 in words is "two hundred sixty-eight million, one hundred eighteen thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 33 36 42 44 48 56 63 66 72 77 84 88 99 112 126 132 144 154 168 176 198 231 252 264 308 336 396 462 504 528 616 693 792 924 1008 1232 1386 1584 1848 2772 3696 5544 11088 24181 48362 72543 96724 145086 169267 193448 217629 265991 290172 338534 386896 435258 507801 531982 580344 677068 797973 870516 1015602 1063964 1160688 1354136 1523403 1595946 1741032 1861937 2031204 2127928 2393919 2708272 3046806 3191892 3482064 3723874 4062408 4255856 4787838 5585811 6093612 6383784 7447748 8124816 9575676 11171622 12187224 12767568 14895496 16757433 19151352 22343244 24374448 29790992 33514866 38302704 44686488 67029732 89372976 134059464 268118928