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9953431 = 61163171
BaseRepresentation
bin100101111110…
…000010010111
3200201200112121
4211332002113
510022002211
6553200411
7150413515
oct45760227
920650477
109953431
115689184
123400107
1320a6607
1414714b5
15d19271
hex97e097

9953431 has 4 divisors (see below), whose sum is σ = 10116664. Its totient is φ = 9790200.

The previous prime is 9953429. The next prime is 9953479. The reversal of 9953431 is 1343599.

9953431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9953431 - 21 = 9953429 is a prime.

It is a super-2 number, since 2×99534312 = 198141577343522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9953401) 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 3 ways as a sum of consecutive naturals, for example, 81525 + ... + 81646.

It is an arithmetic number, because the mean of its divisors is an integer number (2529166).

Almost surely, 29953431 is an apocalyptic number.

9953431 is a deficient number, since it is larger than the sum of its proper divisors (163233).

9953431 is a wasteful number, since it uses less digits than its factorization.

9953431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163232.

The product of its digits is 14580, while the sum is 34.

The square root of 9953431 is about 3154.9058623040. The cubic root of 9953431 is about 215.1085156188.

The spelling of 9953431 in words is "nine million, nine hundred fifty-three thousand, four hundred thirty-one".

Divisors: 1 61 163171 9953431