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10197000997 = 19536684263
BaseRepresentation
bin10010111111100100…
…11110001100100101
3222022122110022200121
421133302132030211
5131340413012442
64403501041541
7510456035611
oct113762361445
928278408617
1010197000997
114362a39857
121b86b562b1
13c66764701
146ca3a4341
153ea323967
hex25fc9e325

10197000997 has 4 divisors (see below), whose sum is σ = 10733685280. Its totient is φ = 9660316716.

The previous prime is 10197000991. The next prime is 10197001019. The reversal of 10197000997 is 79900079101.

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 10197000997 - 211 = 10196998949 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 (10197000991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268342113 + ... + 268342150.

It is an arithmetic number, because the mean of its divisors is an integer number (2683421320).

Almost surely, 210197000997 is an apocalyptic number.

It is an amenable number.

10197000997 is a deficient number, since it is larger than the sum of its proper divisors (536684283).

10197000997 is an equidigital number, since it uses as much as digits as its factorization.

10197000997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536684282.

The product of its (nonzero) digits is 35721, while the sum is 43.

The spelling of 10197000997 in words is "ten billion, one hundred ninety-seven million, nine hundred ninety-seven", and thus it is an aban number.

Divisors: 1 19 536684263 10197000997