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11397 = 329131
BaseRepresentation
bin10110010000101
3120122010
42302011
5331042
6124433
745141
oct26205
916563
1011397
118621
126719
135259
144221
15359c
hex2c85

11397 has 8 divisors (see below), whose sum is σ = 15840. Its totient is φ = 7280.

The previous prime is 11393. The next prime is 11399. The reversal of 11397 is 79311.

11397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11397 - 22 = 11393 is a prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 11 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11393) 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, 22 + ... + 152.

It is an arithmetic number, because the mean of its divisors is an integer number (1980).

211397 is an apocalyptic number.

It is an amenable number.

11397 is a deficient number, since it is larger than the sum of its proper divisors (4443).

11397 is a wasteful number, since it uses less digits than its factorization.

11397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its digits is 189, while the sum is 21.

The square root of 11397 is about 106.7567328088. The cubic root of 11397 is about 22.5041967480.

It can be divided in two parts, 113 and 97, that added together give a triangular number (210 = T20).

The spelling of 11397 in words is "eleven thousand, three hundred ninety-seven".

Divisors: 1 3 29 87 131 393 3799 11397