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10664263 = 19561277
BaseRepresentation
bin101000101011…
…100101000111
3202001210121201
4220223211013
510212224023
61020323331
7156434101
oct50534507
922053551
1010664263
116024245
1236a3547
13229501c
1415b8571
15e09bad
hexa2b947

10664263 has 4 divisors (see below), whose sum is σ = 11225560. Its totient is φ = 10102968.

The previous prime is 10664243. The next prime is 10664267. The reversal of 10664263 is 36246601.

10664263 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36246601 = 172132153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10664263 is a prime.

It is a super-2 number, since 2×106642632 = 227453010666338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10664267) 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, 280620 + ... + 280657.

It is an arithmetic number, because the mean of its divisors is an integer number (2806390).

Almost surely, 210664263 is an apocalyptic number.

10664263 is a deficient number, since it is larger than the sum of its proper divisors (561297).

10664263 is an equidigital number, since it uses as much as digits as its factorization.

10664263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561296.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 10664263 is about 3265.6183181750. The cubic root of 10664263 is about 220.1119471582. Note that the first 3 decimals are identical.

It can be divided in two parts, 1066 and 4263, that added together give a square (5329 = 732).

The spelling of 10664263 in words is "ten million, six hundred sixty-four thousand, two hundred sixty-three".

Divisors: 1 19 561277 10664263