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12394191 = 34396079
BaseRepresentation
bin101111010001…
…111011001111
3212022200122010
4233101323033
511133103231
61121352303
7210230445
oct57217317
925280563
1012394191
116aa5a37
124198693
13274c554
141908b95
15114c546
hexbd1ecf

12394191 has 8 divisors (see below), whose sum is σ = 16910080. Its totient is φ = 8070552.

The previous prime is 12394169. The next prime is 12394199. The reversal of 12394191 is 19149321.

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

It is not a de Polignac number, because 12394191 - 211 = 12392143 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 (12394199) 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, 47911 + ... + 48168.

It is an arithmetic number, because the mean of its divisors is an integer number (2113760).

Almost surely, 212394191 is an apocalyptic number.

12394191 is a deficient number, since it is larger than the sum of its proper divisors (4515889).

12394191 is an equidigital number, since it uses as much as digits as its factorization.

12394191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96125.

The product of its digits is 1944, while the sum is 30.

The square root of 12394191 is about 3520.5384531347. The cubic root of 12394191 is about 231.4227561301.

The spelling of 12394191 in words is "twelve million, three hundred ninety-four thousand, one hundred ninety-one".

Divisors: 1 3 43 129 96079 288237 4131397 12394191