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9968831 = 74313417
BaseRepresentation
bin100110000001…
…110010111111
3200202110122222
4212001302333
510023000311
6553355555
7150506435
oct46016277
920673588
109968831
115699804
123408bbb
1320b0622
141476d55
15d1dadb
hex981cbf

9968831 has 4 divisors (see below), whose sum is σ = 9982992. Its totient is φ = 9954672.

The previous prime is 9968809. The next prime is 9968839. The reversal of 9968831 is 1388699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1388699 = 13106823.

It is a cyclic number.

It is not a de Polignac number, because 9968831 - 26 = 9968767 is a prime.

It is a super-2 number, since 2×99688312 = 198755183013122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9968839) 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, 5966 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (2495748).

Almost surely, 29968831 is an apocalyptic number.

9968831 is a deficient number, since it is larger than the sum of its proper divisors (14161).

9968831 is a wasteful number, since it uses less digits than its factorization.

9968831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14160.

The product of its digits is 93312, while the sum is 44.

The square root of 9968831 is about 3157.3455623356. The cubic root of 9968831 is about 215.2193974560.

The spelling of 9968831 in words is "nine million, nine hundred sixty-eight thousand, eight hundred thirty-one".

Divisors: 1 743 13417 9968831