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268611841 = 436246787
BaseRepresentation
bin10000000000101…
…011000100000001
3200201102220011201
4100000223010001
51022231034331
642353141201
76441106621
oct2000530401
9621386151
10268611841
11128696063
1275b5a801
134385b024
1427962881
15188ada61
hex1002b101

268611841 has 4 divisors (see below), whose sum is σ = 274858672. Its totient is φ = 262365012.

The previous prime is 268611809. The next prime is 268611859. The reversal of 268611841 is 148116862.

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 268611841 - 25 = 268611809 is a prime.

It is a super-2 number, since 2×2686118412 = 144304642250818562, which contains 22 as substring.

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 268611841.

It is not an unprimeable number, because it can be changed into a prime (268611881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3123351 + ... + 3123436.

It is an arithmetic number, because the mean of its divisors is an integer number (68714668).

Almost surely, 2268611841 is an apocalyptic number.

It is an amenable number.

268611841 is a deficient number, since it is larger than the sum of its proper divisors (6246831).

268611841 is an equidigital number, since it uses as much as digits as its factorization.

268611841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246830.

The product of its digits is 18432, while the sum is 37.

The square root of 268611841 is about 16389.3819590612. The cubic root of 268611841 is about 645.2208373863.

The spelling of 268611841 in words is "two hundred sixty-eight million, six hundred eleven thousand, eight hundred forty-one".

Divisors: 1 43 6246787 268611841