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10000997 = 19995003
BaseRepresentation
bin100110001001…
…101001100101
3200211002210022
4212021221211
510030012442
6554204525
7151002266
oct46115145
920732708
1010000997
115710996
123423745
1320c2166
14148496d
15d283d2
hex989a65

10000997 has 4 divisors (see below), whose sum is σ = 10008000. Its totient is φ = 9993996.

The previous prime is 10000993. The next prime is 10001009. The reversal of 10000997 is 79900001.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10000997 - 22 = 10000993 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 (10000993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503 + ... + 4500.

It is an arithmetic number, because the mean of its divisors is an integer number (2502000).

Almost surely, 210000997 is an apocalyptic number.

It is an amenable number.

10000997 is a deficient number, since it is larger than the sum of its proper divisors (7003).

10000997 is an equidigital number, since it uses as much as digits as its factorization.

10000997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 10000997 is about 3162.4352957808. The cubic root of 10000997 is about 215.4506286699.

Adding to 10000997 its reverse (79900001), we get a palindrome (89900998).

The spelling of 10000997 in words is "ten million, nine hundred ninety-seven", and thus it is an aban number.

Divisors: 1 1999 5003 10000997