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9999953 = 37270269
BaseRepresentation
bin100110001001…
…011001010001
3200211001100122
4212021121101
510024444303
6554200025
7150666245
oct46113121
920731318
109999953
115710127
123423015
1320c1842
141484425
15d27e38
hex989651

9999953 has 4 divisors (see below), whose sum is σ = 10270260. Its totient is φ = 9729648.

The previous prime is 9999943. The next prime is 9999971. The reversal of 9999953 is 3599999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 5870929 = 2032^2 + 2423^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999953 - 24 = 9999937 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9999895 and 9999904.

It is not an unprimeable number, because it can be changed into a prime (9999943) 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, 135098 + ... + 135171.

It is an arithmetic number, because the mean of its divisors is an integer number (2567565).

Almost surely, 29999953 is an apocalyptic number.

It is an amenable number.

9999953 is a deficient number, since it is larger than the sum of its proper divisors (270307).

9999953 is a wasteful number, since it uses less digits than its factorization.

9999953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270306.

The product of its digits is 885735, while the sum is 53.

The square root of 9999953 is about 3162.2702288071. The cubic root of 9999953 is about 215.4431314746.

The spelling of 9999953 in words is "nine million, nine hundred ninety-nine thousand, nine hundred fifty-three".

Divisors: 1 37 270269 9999953