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12264401 = 88113921
BaseRepresentation
bin101110110010…
…001111010001
3212002002121002
4232302033101
511114430101
61114511345
7206150162
oct56621721
925062532
1012264401
116a17476
124135555
132705456
1418b3769
151123d6b
hexbb23d1

12264401 has 4 divisors (see below), whose sum is σ = 12279204. Its totient is φ = 12249600.

The previous prime is 12264397. The next prime is 12264403. The reversal of 12264401 is 10446221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10446221 = 97107693.

It can be written as a sum of positive squares in 2 ways, for example, as 4558225 + 7706176 = 2135^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 12264401 - 22 = 12264397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12264403) 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, 6080 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (3069801).

Almost surely, 212264401 is an apocalyptic number.

It is an amenable number.

12264401 is a deficient number, since it is larger than the sum of its proper divisors (14803).

12264401 is an equidigital number, since it uses as much as digits as its factorization.

12264401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12264401 is about 3502.0566814374. The cubic root of 12264401 is about 230.6121124155.

The spelling of 12264401 in words is "twelve million, two hundred sixty-four thousand, four hundred one".

Divisors: 1 881 13921 12264401