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268806113 = 475719279
BaseRepresentation
bin10000000001011…
…010011111100001
3200201210202122222
4100001122133201
51022303243423
642401240425
76442546202
oct2001323741
9621722588
10268806113
11128809014
1276033115
13438c8594
14279b35a9
15188eb3c8
hex1005a7e1

268806113 has 4 divisors (see below), whose sum is σ = 274525440. Its totient is φ = 263086788.

The previous prime is 268806107. The next prime is 268806121. The reversal of 268806113 is 311608862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268806113 - 26 = 268806049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268806143) 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, 2859593 + ... + 2859686.

It is an arithmetic number, because the mean of its divisors is an integer number (68631360).

Almost surely, 2268806113 is an apocalyptic number.

It is an amenable number.

268806113 is a deficient number, since it is larger than the sum of its proper divisors (5719327).

268806113 is an equidigital number, since it uses as much as digits as its factorization.

268806113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719326.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 268806113 is about 16395.3076518863. The cubic root of 268806113 is about 645.3763506789.

The spelling of 268806113 in words is "two hundred sixty-eight million, eight hundred six thousand, one hundred thirteen".

Divisors: 1 47 5719279 268806113