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10082813 = 13775601
BaseRepresentation
bin100110011101…
…100111111101
3200222021000112
4212131213331
510040122223
61000035405
7151462646
oct46354775
920867015
1010082813
115767404
123462b65
132120480
1414a66cd
15d42778
hex99d9fd

10082813 has 4 divisors (see below), whose sum is σ = 10858428. Its totient is φ = 9307200.

The previous prime is 10082803. The next prime is 10082837. The reversal of 10082813 is 31828001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31828001 = 103130871.

It can be written as a sum of positive squares in 2 ways, for example, as 1776889 + 8305924 = 1333^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 10082813 - 24 = 10082797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10082803) 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, 387788 + ... + 387813.

It is an arithmetic number, because the mean of its divisors is an integer number (2714607).

Almost surely, 210082813 is an apocalyptic number.

10082813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10082813 is a deficient number, since it is larger than the sum of its proper divisors (775615).

10082813 is an equidigital number, since it uses as much as digits as its factorization.

10082813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775614.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 10082813 is about 3175.3445482341. The cubic root of 10082813 is about 216.0365521704.

The spelling of 10082813 in words is "ten million, eighty-two thousand, eight hundred thirteen".

Divisors: 1 13 775601 10082813