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9809013 = 33838537
BaseRepresentation
bin100101011010…
…110001110101
3200110100102210
4211122301311
510002342023
6550124033
7146242464
oct45326165
920410383
109809013
11559a725
123350619
132055966
1414349db
15cdb593
hex95ac75

9809013 has 8 divisors (see below), whose sum is σ = 13114368. Its totient is φ = 6521504.

The previous prime is 9808987. The next prime is 9809027. The reversal of 9809013 is 3109089.

It is a happy number.

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 9809013 - 29 = 9808501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9804013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (1639296).

Almost surely, 29809013 is an apocalyptic number.

It is an amenable number.

9809013 is a deficient number, since it is larger than the sum of its proper divisors (3305355).

9809013 is a wasteful number, since it uses less digits than its factorization.

9809013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 9809013 is about 3131.9343862859. The cubic root of 9809013 is about 214.0630800737.

The spelling of 9809013 in words is "nine million, eight hundred nine thousand, thirteen".

Divisors: 1 3 383 1149 8537 25611 3269671 9809013