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10902013 = 37294649
BaseRepresentation
bin101001100101…
…100111111101
3202111212202021
4221211213331
510242331023
61025400141
7161444203
oct51454775
922455667
1010902013
116176931
123799051
1323492c5
14163b073
15e5535d
hexa659fd

10902013 has 4 divisors (see below), whose sum is σ = 11196700. Its totient is φ = 10607328.

The previous prime is 10902011. The next prime is 10902019. The reversal of 10902013 is 31020901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31020901 = 191632679.

It can be written as a sum of positive squares in 2 ways, for example, as 6416089 + 4485924 = 2533^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 10902013 - 21 = 10902011 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10902011) 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, 147288 + ... + 147361.

It is an arithmetic number, because the mean of its divisors is an integer number (2799175).

Almost surely, 210902013 is an apocalyptic number.

It is an amenable number.

10902013 is a deficient number, since it is larger than the sum of its proper divisors (294687).

10902013 is an equidigital number, since it uses as much as digits as its factorization.

10902013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294686.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 10902013 is about 3301.8196498295. The cubic root of 10902013 is about 221.7356713829.

Adding to 10902013 its reverse (31020901), we get a palindrome (41922914).

The spelling of 10902013 in words is "ten million, nine hundred two thousand, thirteen".

Divisors: 1 37 294649 10902013