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268956900 = 223252298841
BaseRepresentation
bin10000000001111…
…111010011100100
3200202002102111200
4100001333103210
51022323110100
642404402500
76444044622
oct2001772344
9622072450
10268956900
11128901333
12760a6430
134394c0c4
1427a12512
151892ae00
hex1007f4e4

268956900 has 54 divisors (see below), whose sum is σ = 843033282. Its totient is φ = 71721600.

The previous prime is 268956829. The next prime is 268956901. The reversal of 268956900 is 9659862.

268956900 is a `hidden beast` number, since 2 + 6 + 89 + 569 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 13660416 + 255296484 = 3696^2 + 15978^2 .

It is a super-2 number, since 2×2689569002 = 144675628115220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (268956901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 148521 + ... + 150320.

Almost surely, 2268956900 is an apocalyptic number.

268956900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268956900 is an abundant number, since it is smaller than the sum of its proper divisors (574076382).

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

268956900 is a wasteful number, since it uses less digits than its factorization.

268956900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298861 (or 298851 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 268956900 is about 16399.9054875325. The cubic root of 268956900 is about 645.4970029119.

The spelling of 268956900 in words is "two hundred sixty-eight million, nine hundred fifty-six thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 298841 597682 896523 1195364 1494205 1793046 2689569 2988410 3586092 4482615 5379138 5976820 7471025 8965230 10758276 13447845 14942050 17930460 22413075 26895690 29884100 44826150 53791380 67239225 89652300 134478450 268956900