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9402013 = 10986257
BaseRepresentation
bin100011110111…
…011010011101
3122200200010201
4203313122131
54401331023
6533303501
7142626055
oct43673235
918620121
109402013
115341965
123194b91
131c4262a
14136a565
15c5abad
hex8f769d

9402013 has 4 divisors (see below), whose sum is σ = 9488380. Its totient is φ = 9315648.

The previous prime is 9402011. The next prime is 9402023. The reversal of 9402013 is 3102049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102049 = 7734013.

It can be written as a sum of positive squares in 2 ways, for example, as 2442969 + 6959044 = 1563^2 + 2638^2 .

It is a cyclic number.

It is not a de Polignac number, because 9402013 - 21 = 9402011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9402011) 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, 43020 + ... + 43237.

It is an arithmetic number, because the mean of its divisors is an integer number (2372095).

Almost surely, 29402013 is an apocalyptic number.

It is an amenable number.

9402013 is a deficient number, since it is larger than the sum of its proper divisors (86367).

9402013 is a wasteful number, since it uses less digits than its factorization.

9402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86366.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 9402013 is about 3066.2702098804. The cubic root of 9402013 is about 211.0604934252.

The spelling of 9402013 in words is "nine million, four hundred two thousand, thirteen".

Divisors: 1 109 86257 9402013