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9870013 = 172325243
BaseRepresentation
bin100101101001…
…101010111101
3200120110010001
4211221222331
510011320023
6551314301
7146615356
oct45515275
920513101
109870013
11563153a
12337b991
13207765a
14144cd2d
15cee6ad
hex969abd

9870013 has 8 divisors (see below), whose sum is σ = 10905408. Its totient is φ = 8885184.

The previous prime is 9869999. The next prime is 9870017. The reversal of 9870013 is 3100789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9870013 - 213 = 9861821 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 (9870017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12231 + ... + 13012.

It is an arithmetic number, because the mean of its divisors is an integer number (1363176).

Almost surely, 29870013 is an apocalyptic number.

It is an amenable number.

9870013 is a deficient number, since it is larger than the sum of its proper divisors (1035395).

9870013 is a wasteful number, since it uses less digits than its factorization.

9870013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25283.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 9870013 is about 3141.6576834531. The cubic root of 9870013 is about 214.5058997912.

The spelling of 9870013 in words is "nine million, eight hundred seventy thousand, thirteen".

Divisors: 1 17 23 391 25243 429131 580589 9870013