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10645081 = 16763743
BaseRepresentation
bin101000100110…
…111001011001
3202000211022021
4220212321121
510211120311
61020054441
7156324136
oct50467131
922024267
1010645081
116010897
123694421
132289385
1415b158d
15e04171
hexa26e59

10645081 has 4 divisors (see below), whose sum is σ = 10708992. Its totient is φ = 10581172.

The previous prime is 10645069. The next prime is 10645127. The reversal of 10645081 is 18054601.

10645081 is digitally balanced in base 2, because in such base 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 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 10645081 - 211 = 10643033 is a prime.

It is a super-2 number, since 2×106450812 = 226635498993122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10645181) 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, 31705 + ... + 32038.

It is an arithmetic number, because the mean of its divisors is an integer number (2677248).

Almost surely, 210645081 is an apocalyptic number.

10645081 is the 2064-th centered pentagonal number.

It is an amenable number.

10645081 is a deficient number, since it is larger than the sum of its proper divisors (63911).

10645081 is an equidigital number, since it uses as much as digits as its factorization.

10645081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63910.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 10645081 is about 3262.6800333468. The cubic root of 10645081 is about 219.9798948569.

Adding to 10645081 its reverse (18054601), we get a palindrome (28699682).

The spelling of 10645081 in words is "ten million, six hundred forty-five thousand, eighty-one".

Divisors: 1 167 63743 10645081