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12810197 = 173592099
BaseRepresentation
bin110000110111…
…011111010101
3220002211021202
4300313133111
511234411242
61134322245
7213612341
oct60673725
926084252
1012810197
11725a544
124359385
1328669ca
1419b6621
1511d0932
hexc377d5

12810197 has 8 divisors (see below), whose sum is σ = 13608000. Its totient is φ = 12017344.

The previous prime is 12810191. The next prime is 12810209. The reversal of 12810197 is 79101821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12810197 is a prime.

It is a super-2 number, since 2×128101972 = 328202294357618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5054 + ... + 7152.

It is an arithmetic number, because the mean of its divisors is an integer number (1701000).

Almost surely, 212810197 is an apocalyptic number.

12810197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12810197 is a deficient number, since it is larger than the sum of its proper divisors (797803).

12810197 is a wasteful number, since it uses less digits than its factorization.

12810197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12810197 is about 3579.1335543676. The cubic root of 12810197 is about 233.9835196711.

The spelling of 12810197 in words is "twelve million, eight hundred ten thousand, one hundred ninety-seven".

Divisors: 1 17 359 2099 6103 35683 753541 12810197