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13244197 = 19697063
BaseRepresentation
bin110010100001…
…011100100101
3220220212121211
4302201130211
511342303242
61151511421
7220400551
oct62413445
926825554
1013244197
11752661a
124528571
132989405
141a8a861
151269317
hexca1725

13244197 has 4 divisors (see below), whose sum is σ = 13941280. Its totient is φ = 12547116.

The previous prime is 13244183. The next prime is 13244219. The reversal of 13244197 is 79144231.

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 a de Polignac number, because none of the positive numbers 2k-13244197 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 (13244167) 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, 348513 + ... + 348550.

It is an arithmetic number, because the mean of its divisors is an integer number (3485320).

Almost surely, 213244197 is an apocalyptic number.

It is an amenable number.

13244197 is a deficient number, since it is larger than the sum of its proper divisors (697083).

13244197 is an equidigital number, since it uses as much as digits as its factorization.

13244197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697082.

The product of its digits is 6048, while the sum is 31.

The square root of 13244197 is about 3639.2577539933. The cubic root of 13244197 is about 236.5966243388.

The spelling of 13244197 in words is "thirteen million, two hundred forty-four thousand, one hundred ninety-seven".

Divisors: 1 19 697063 13244197