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9681995 = 51936399
BaseRepresentation
bin100100111011…
…110001001011
3200012220012102
4210323301023
54434310440
6543304015
7145203251
oct44736113
920186172
109681995
115513254
1232ab00b
13200cbbb
1414005d1
15cb3b15
hex93bc4b

9681995 has 4 divisors (see below), whose sum is σ = 11618400. Its totient is φ = 7745592.

The previous prime is 9681989. The next prime is 9682007. The reversal of 9681995 is 5991869.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5991869 = 13460913.

It is a cyclic number.

It is not a de Polignac number, because 9681995 - 28 = 9681739 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 968195 + ... + 968204.

It is an arithmetic number, because the mean of its divisors is an integer number (2904600).

Almost surely, 29681995 is an apocalyptic number.

9681995 is a deficient number, since it is larger than the sum of its proper divisors (1936405).

9681995 is a wasteful number, since it uses less digits than its factorization.

9681995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936404.

The product of its digits is 174960, while the sum is 47.

The square root of 9681995 is about 3111.5904293464. The cubic root of 9681995 is about 213.1350873701.

The spelling of 9681995 in words is "nine million, six hundred eighty-one thousand, nine hundred ninety-five".

Divisors: 1 5 1936399 9681995