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12270193 = 134123021
BaseRepresentation
bin101110110011…
…101001110001
3212002101112121
4232303221301
511120121233
61114554241
7206203105
oct56635161
925071477
1012270193
116a20861
124138981
132707c90
1418b5905
15112592d
hexbb3a71

12270193 has 8 divisors (see below), whose sum is σ = 13536936. Its totient is φ = 11049600.

The previous prime is 12270173. The next prime is 12270197. The reversal of 12270193 is 39107221.

It can be written as a sum of positive squares in 4 ways, for example, as 1034289 + 11235904 = 1017^2 + 3352^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12270193 - 221 = 10173041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12270197) 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, 10978 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (1692117).

Almost surely, 212270193 is an apocalyptic number.

12270193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12270193 is a deficient number, since it is larger than the sum of its proper divisors (1266743).

12270193 is a wasteful number, since it uses less digits than its factorization.

12270193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23075.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12270193 is about 3502.8835264679. The cubic root of 12270193 is about 230.6484097486.

The spelling of 12270193 in words is "twelve million, two hundred seventy thousand, one hundred ninety-three".

Divisors: 1 13 41 533 23021 299273 943861 12270193