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13452229 = 71921747
BaseRepresentation
bin110011010100…
…001111000101
3221022102222201
4303110033011
511420432404
61200154501
7222225220
oct63241705
927272881
1013452229
11765894a
124608a31
132a2cccb
141b025b7
1512aaca4
hexcd43c5

13452229 has 4 divisors (see below), whose sum is σ = 15373984. Its totient is φ = 11530476.

The previous prime is 13452211. The next prime is 13452319. The reversal of 13452229 is 92225431.

13452229 is digitally balanced in base 2 and base 8, because in such bases 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: 92225431 = 224341117.

It is a cyclic number.

It is not a de Polignac number, because 13452229 - 223 = 5063621 is a prime.

It is a Duffinian number.

13452229 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 13452197 and 13452206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13452629) 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, 960867 + ... + 960880.

It is an arithmetic number, because the mean of its divisors is an integer number (3843496).

Almost surely, 213452229 is an apocalyptic number.

It is an amenable number.

13452229 is a deficient number, since it is larger than the sum of its proper divisors (1921755).

13452229 is an equidigital number, since it uses as much as digits as its factorization.

13452229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921754.

The product of its digits is 4320, while the sum is 28.

The square root of 13452229 is about 3667.7280433533. The cubic root of 13452229 is about 237.8289675812.

The spelling of 13452229 in words is "thirteen million, four hundred fifty-two thousand, two hundred twenty-nine".

Divisors: 1 7 1921747 13452229