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10438997 = 13179687
BaseRepresentation
bin100111110100…
…100101010101
3201122100121112
4213310211111
510133021442
61011424405
7154505252
oct47644525
921570545
1010438997
11598aa78
1235b5105
13221662a
14155a429
15db3082
hex9f4955

10438997 has 4 divisors (see below), whose sum is σ = 10518816. Its totient is φ = 10359180.

The previous prime is 10438973. The next prime is 10439041. The reversal of 10438997 is 79983401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10438997 - 212 = 10434901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10438097) 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, 39713 + ... + 39974.

It is an arithmetic number, because the mean of its divisors is an integer number (2629704).

Almost surely, 210438997 is an apocalyptic number.

It is an amenable number.

10438997 is a deficient number, since it is larger than the sum of its proper divisors (79819).

10438997 is an equidigital number, since it uses as much as digits as its factorization.

10438997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79818.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 10438997 is about 3230.9436701992. The cubic root of 10438997 is about 218.5510635455.

The spelling of 10438997 in words is "ten million, four hundred thirty-eight thousand, nine hundred ninety-seven".

Divisors: 1 131 79687 10438997