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11293897 = 23491039
BaseRepresentation
bin101011000101…
…010011001001
3210020210022111
4223011103021
510342401042
61042022321
7164665546
oct53052311
923223274
1011293897
1164142aa
1239479a1
1324557a4
1416ddbcd
15ed1517
hexac54c9

11293897 has 4 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 10802836.

The previous prime is 11293883. The next prime is 11293913. The reversal of 11293897 is 79839211.

11293897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 79839211 = 735110861.

It is a cyclic number.

It is not a de Polignac number, because 11293897 - 211 = 11291849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11293097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245497 + ... + 245542.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240).

Almost surely, 211293897 is an apocalyptic number.

It is an amenable number.

11293897 is a deficient number, since it is larger than the sum of its proper divisors (491063).

11293897 is an equidigital number, since it uses as much as digits as its factorization.

11293897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491062.

The product of its digits is 27216, while the sum is 40.

The square root of 11293897 is about 3360.6393736907. The cubic root of 11293897 is about 224.3612964580.

The spelling of 11293897 in words is "eleven million, two hundred ninety-three thousand, eight hundred ninety-seven".

Divisors: 1 23 491039 11293897