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268955233 = 2291174477
BaseRepresentation
bin10000000001111…
…110111001100001
3200202002100012221
4100001332321201
51022323031413
642404351041
76444040021
oct2001767141
9622070187
10268955233
11128900058
12760a5481
134394b411
1427a11a81
151892a68d
hex1007ee61

268955233 has 4 divisors (see below), whose sum is σ = 270129940. Its totient is φ = 267780528.

The previous prime is 268955213. The next prime is 268955243. The reversal of 268955233 is 332559862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332559862 = 2166279931.

It can be written as a sum of positive squares in 2 ways, for example, as 215854864 + 53100369 = 14692^2 + 7287^2 .

It is a cyclic number.

It is not a de Polignac number, because 268955233 - 25 = 268955201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268955233.

It is not an unprimeable number, because it can be changed into a prime (268955213) 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 3 ways as a sum of consecutive naturals, for example, 587010 + ... + 587467.

It is an arithmetic number, because the mean of its divisors is an integer number (67532485).

Almost surely, 2268955233 is an apocalyptic number.

It is an amenable number.

268955233 is a deficient number, since it is larger than the sum of its proper divisors (1174707).

268955233 is a wasteful number, since it uses less digits than its factorization.

268955233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174706.

The product of its digits is 388800, while the sum is 43.

The square root of 268955233 is about 16399.8546639902. The cubic root of 268955233 is about 645.4956693082.

The spelling of 268955233 in words is "two hundred sixty-eight million, nine hundred fifty-five thousand, two hundred thirty-three".

Divisors: 1 229 1174477 268955233