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11864297 = 23515839
BaseRepresentation
bin101101010000…
…100011101001
3211022202202102
4231100203221
511014124142
61102143145
7202562534
oct55204351
924282672
1011864297
116773905
123b81ab5
1325c52c3
14180ba1b
151095532
hexb508e9

11864297 has 4 divisors (see below), whose sum is σ = 12380160. Its totient is φ = 11348436.

The previous prime is 11864273. The next prime is 11864311. The reversal of 11864297 is 79246811.

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: 79246811 = 711320973.

It is a cyclic number.

It is not a de Polignac number, because 11864297 - 26 = 11864233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11864297.

It is not an unprimeable number, because it can be changed into a prime (11864207) 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, 257897 + ... + 257942.

It is an arithmetic number, because the mean of its divisors is an integer number (3095040).

Almost surely, 211864297 is an apocalyptic number.

It is an amenable number.

11864297 is a deficient number, since it is larger than the sum of its proper divisors (515863).

11864297 is an equidigital number, since it uses as much as digits as its factorization.

11864297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515862.

The product of its digits is 24192, while the sum is 38.

The square root of 11864297 is about 3444.4588834823. The cubic root of 11864297 is about 228.0765683637.

The spelling of 11864297 in words is "eleven million, eight hundred sixty-four thousand, two hundred ninety-seven".

Divisors: 1 23 515839 11864297