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10813811 = 38927799
BaseRepresentation
bin101001010000…
…000101110011
3202100101202112
4221100011303
510232020221
61023435535
7160626101
oct51200563
922311675
1010813811
116116638
123755bab
132318108
141616c71
15e3915b
hexa50173

10813811 has 4 divisors (see below), whose sum is σ = 10842000. Its totient is φ = 10785624.

The previous prime is 10813801. The next prime is 10813813. The reversal of 10813811 is 11831801.

10813811 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 10813811 - 210 = 10812787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10813813) 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, 13511 + ... + 14288.

It is an arithmetic number, because the mean of its divisors is an integer number (2710500).

Almost surely, 210813811 is an apocalyptic number.

10813811 is a deficient number, since it is larger than the sum of its proper divisors (28189).

10813811 is an equidigital number, since it uses as much as digits as its factorization.

10813811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28188.

The product of its (nonzero) digits is 192, while the sum is 23.

The square root of 10813811 is about 3288.4359504178. The cubic root of 10813811 is about 221.1360722998.

The spelling of 10813811 in words is "ten million, eight hundred thirteen thousand, eight hundred eleven".

Divisors: 1 389 27799 10813811