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268406754 = 23711472263
BaseRepresentation
bin11111111111110…
…00111111100010
3200201001110211220
433333320333202
51022203004004
642344515510
76436263660
oct1777707742
9621043756
10268406754
11128565a70
1275a7bb96
13437b8885
142790bc30
151886cdd9
hexfff8fe2

268406754 has 96 divisors (see below), whose sum is σ = 686416896. Its totient is φ = 67973280.

The previous prime is 268406737. The next prime is 268406759. The reversal of 268406754 is 457604862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268406759) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1020427 + ... + 1020689.

It is an arithmetic number, because the mean of its divisors is an integer number (7150176).

Almost surely, 2268406754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268406754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343208448).

268406754 is an abundant number, since it is smaller than the sum of its proper divisors (418010142).

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

268406754 is a wasteful number, since it uses less digits than its factorization.

268406754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 268406754 is about 16383.1240610575. The cubic root of 268406754 is about 645.0565853848.

The spelling of 268406754 in words is "two hundred sixty-eight million, four hundred six thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 47 66 77 94 141 154 231 263 282 329 462 517 526 658 789 987 1034 1551 1578 1841 1974 2209 2893 3102 3619 3682 4418 5523 5786 6627 7238 8679 10857 11046 12361 13254 15463 17358 20251 21714 24299 24722 30926 37083 40502 46389 48598 60753 72897 74166 86527 92778 121506 135971 145794 170093 173054 259581 271942 340186 407913 510279 519162 580967 815826 951797 1020558 1161934 1742901 1903594 2855391 3485802 4066769 5710782 6390637 8133538 12200307 12781274 19171911 24400614 38343822 44734459 89468918 134203377 268406754