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268480481 = 523513347
BaseRepresentation
bin10000000000001…
…010111111100001
3200201012012222112
4100000022333201
51022212333411
642350245105
76440021633
oct2000127741
9621165875
10268480481
111286063a5
1275ab6795
13438132b9
142792aa53
1518884b8b
hex1000afe1

268480481 has 4 divisors (see below), whose sum is σ = 268994352. Its totient is φ = 267966612.

The previous prime is 268480477. The next prime is 268480483. The reversal of 268480481 is 184084862.

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 268480481 - 22 = 268480477 is a prime.

It is a super-2 number, since 2×2684804812 = 144163537355982722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268480483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256151 + ... + 257196.

It is an arithmetic number, because the mean of its divisors is an integer number (67248588).

Almost surely, 2268480481 is an apocalyptic number.

It is an amenable number.

268480481 is a deficient number, since it is larger than the sum of its proper divisors (513871).

268480481 is an equidigital number, since it uses as much as digits as its factorization.

268480481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513870.

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 268480481 is about 16385.3739963420. The cubic root of 268480481 is about 645.1156421861.

The spelling of 268480481 in words is "two hundred sixty-eight million, four hundred eighty thousand, four hundred eighty-one".

Divisors: 1 523 513347 268480481