Search a number
-
+
268773280 = 2551679833
BaseRepresentation
bin10000000001010…
…010011110100000
3200201202002121221
4100001102132200
51022301221110
642400424424
76442351366
oct2001223640
9621662557
10268773280
11128796386
1276018114
13438b6659
14279a5636
15188e17da
hex100527a0

268773280 has 24 divisors (see below), whose sum is σ = 634977252. Its totient is φ = 107509248.

The previous prime is 268773227. The next prime is 268773287. The reversal of 268773280 is 82377862.

It can be written as a sum of positive squares in 2 ways, for example, as 251032336 + 17740944 = 15844^2 + 4212^2 .

It is not an unprimeable number, because it can be changed into a prime (268773287) 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, 839757 + ... + 840076.

Almost surely, 2268773280 is an apocalyptic number.

268773280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268773280 is an abundant number, since it is smaller than the sum of its proper divisors (366203972).

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

268773280 is a wasteful number, since it uses less digits than its factorization.

268773280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679848 (or 1679840 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 268773280 is about 16394.3063287228. The cubic root of 268773280 is about 645.3500733692.

The spelling of 268773280 in words is "two hundred sixty-eight million, seven hundred seventy-three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1679833 3359666 6719332 8399165 13438664 16798330 26877328 33596660 53754656 67193320 134386640 268773280