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9702013 = 17356081
BaseRepresentation
bin100101000000…
…101001111101
3200020220122211
4211000221331
54440431023
6543540421
7145315516
oct45005175
920226584
109702013
1155272a2
1232ba711
132019049
141407a0d
15cb9a0d
hex940a7d

9702013 has 4 divisors (see below), whose sum is σ = 9758268. Its totient is φ = 9645760.

The previous prime is 9701999. The next prime is 9702041. The reversal of 9702013 is 3102079.

9702013 = 22022 + 22032.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102079 = 23134873.

It can be written as a sum of positive squares in 2 ways, for example, as 4853209 + 4848804 = 2203^2 + 2202^2 .

It is a cyclic number.

It is not a de Polignac number, because 9702013 - 213 = 9693821 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 (9702083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27868 + ... + 28213.

It is an arithmetic number, because the mean of its divisors is an integer number (2439567).

Almost surely, 29702013 is an apocalyptic number.

9702013 is the 2203-rd centered square number.

It is an amenable number.

9702013 is a deficient number, since it is larger than the sum of its proper divisors (56255).

9702013 is a wasteful number, since it uses less digits than its factorization.

9702013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56254.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 9702013 is about 3114.8054513886. The cubic root of 9702013 is about 213.2818753384.

The spelling of 9702013 in words is "nine million, seven hundred two thousand, thirteen".

Divisors: 1 173 56081 9702013