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12254397 = 34084799
BaseRepresentation
bin101110101111…
…110010111101
3212001120212120
4232233302331
511114120042
61114353153
7206106051
oct56576275
925046776
1012254397
116a0aa01
12412b7b9
132700a2c
1418adc61
151120dec
hexbafcbd

12254397 has 4 divisors (see below), whose sum is σ = 16339200. Its totient is φ = 8169596.

The previous prime is 12254371. The next prime is 12254419. The reversal of 12254397 is 79345221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79345221 = 326448407.

It is a cyclic number.

It is not a de Polignac number, because 12254397 - 211 = 12252349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12254197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042397 + ... + 2042402.

It is an arithmetic number, because the mean of its divisors is an integer number (4084800).

Almost surely, 212254397 is an apocalyptic number.

It is an amenable number.

12254397 is a deficient number, since it is larger than the sum of its proper divisors (4084803).

12254397 is an equidigital number, since it uses as much as digits as its factorization.

12254397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084802.

The product of its digits is 15120, while the sum is 33.

The square root of 12254397 is about 3500.6280865010. The cubic root of 12254397 is about 230.5493923762.

The spelling of 12254397 in words is "twelve million, two hundred fifty-four thousand, three hundred ninety-seven".

Divisors: 1 3 4084799 12254397