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23214451 = 131785727
BaseRepresentation
bin101100010001…
…1100101110011
31121200102020111
41120203211303
521420330301
62145322151
7401214421
oct130434563
947612214
1023214451
11121163a7
127936357
134a6a580
143124111
152088551
hex1623973

23214451 has 4 divisors (see below), whose sum is σ = 25000192. Its totient is φ = 21428712.

The previous prime is 23214439. The next prime is 23214463. The reversal of 23214451 is 15441232.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23214439) and next prime (23214463).

It is a cyclic number.

It is not a de Polignac number, because 23214451 - 211 = 23212403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23214421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892851 + ... + 892876.

It is an arithmetic number, because the mean of its divisors is an integer number (6250048).

Almost surely, 223214451 is an apocalyptic number.

23214451 is a deficient number, since it is larger than the sum of its proper divisors (1785741).

23214451 is a wasteful number, since it uses less digits than its factorization.

23214451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785740.

The product of its digits is 960, while the sum is 22.

The square root of 23214451 is about 4818.1377107758. The cubic root of 23214451 is about 285.2678348084.

Adding to 23214451 its reverse (15441232), we get a palindrome (38655683).

The spelling of 23214451 in words is "twenty-three million, two hundred fourteen thousand, four hundred fifty-one".

Divisors: 1 13 1785727 23214451