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14247121 = 72035303
BaseRepresentation
bin110110010110…
…010011010001
3222210211101011
4312112103101
512121401441
61225210521
7232045540
oct66262321
928724334
1014247121
118051089
124930a41
132c4aa65
141c6c157
1513b6581
hexd964d1

14247121 has 4 divisors (see below), whose sum is σ = 16282432. Its totient is φ = 12211812.

The previous prime is 14247119. The next prime is 14247127. The reversal of 14247121 is 12174241.

14247121 is digitally balanced in base 2, 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: 12174241 = 18167261.

It is a cyclic number.

It is not a de Polignac number, because 14247121 - 21 = 14247119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14247092 and 14247101.

It is not an unprimeable number, because it can be changed into a prime (14247127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017645 + ... + 1017658.

It is an arithmetic number, because the mean of its divisors is an integer number (4070608).

Almost surely, 214247121 is an apocalyptic number.

It is an amenable number.

14247121 is a deficient number, since it is larger than the sum of its proper divisors (2035311).

14247121 is an equidigital number, since it uses as much as digits as its factorization.

14247121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035310.

The product of its digits is 448, while the sum is 22.

The square root of 14247121 is about 3774.5358655072. The cubic root of 14247121 is about 242.4240510379.

The spelling of 14247121 in words is "fourteen million, two hundred forty-seven thousand, one hundred twenty-one".

Divisors: 1 7 2035303 14247121