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12152397 = 310313929
BaseRepresentation
bin101110010110…
…111001001101
3211212101221210
4232112321031
511102334042
61112245033
7205202505
oct56267115
924771853
1012152397
116950304
1240a0779
13269648a
141884a05
151100a9c
hexb96e4d

12152397 has 8 divisors (see below), whose sum is σ = 16223040. Its totient is φ = 8091680.

The previous prime is 12152389. The next prime is 12152401. The reversal of 12152397 is 79325121.

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 12152397 - 23 = 12152389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152797) 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, 1129 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (2027880).

Almost surely, 212152397 is an apocalyptic number.

It is an amenable number.

12152397 is a deficient number, since it is larger than the sum of its proper divisors (4070643).

12152397 is a wasteful number, since it uses less digits than its factorization.

12152397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963.

The product of its digits is 3780, while the sum is 30.

The square root of 12152397 is about 3486.0288294849. The cubic root of 12152397 is about 229.9079467792.

The spelling of 12152397 in words is "twelve million, one hundred fifty-two thousand, three hundred ninety-seven".

Divisors: 1 3 1031 3093 3929 11787 4050799 12152397