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14221253 = 19748487
BaseRepresentation
bin110110001111…
…111111000101
3222202111220002
4312033333011
512120040003
61224451045
7231610244
oct66177705
928674802
1014221253
118033702
124919a85
132c3c057
141c6295b
1513ada88
hexd8ffc5

14221253 has 4 divisors (see below), whose sum is σ = 14969760. Its totient is φ = 13472748.

The previous prime is 14221247. The next prime is 14221289. The reversal of 14221253 is 35212241.

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: 35212241 = 231530967.

It is not a de Polignac number, because 14221253 - 24 = 14221237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221243) 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, 374225 + ... + 374262.

It is an arithmetic number, because the mean of its divisors is an integer number (3742440).

Almost surely, 214221253 is an apocalyptic number.

It is an amenable number.

14221253 is a deficient number, since it is larger than the sum of its proper divisors (748507).

14221253 is an equidigital number, since it uses as much as digits as its factorization.

14221253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748506.

The product of its digits is 480, while the sum is 20.

The square root of 14221253 is about 3771.1076622128. The cubic root of 14221253 is about 242.2772418557.

Adding to 14221253 its reverse (35212241), we get a palindrome (49433494).

The spelling of 14221253 in words is "fourteen million, two hundred twenty-one thousand, two hundred fifty-three".

Divisors: 1 19 748487 14221253