Search a number
-
+
23214021 = 38393229
BaseRepresentation
bin101100010001…
…1011111000101
31121200101122120
41120203133011
521420322041
62145320153
7401213235
oct130433705
947611576
1023214021
1112116046
127936059
134a6a30c
143123cc5
152088366
hex16237c5

23214021 has 8 divisors (see below), whose sum is σ = 31325280. Its totient is φ = 15289392.

The previous prime is 23214019. The next prime is 23214031. The reversal of 23214021 is 12041232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23214021 - 21 = 23214019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23214001) 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 7 ways as a sum of consecutive naturals, for example, 46366 + ... + 46863.

It is an arithmetic number, because the mean of its divisors is an integer number (3915660).

Almost surely, 223214021 is an apocalyptic number.

It is an amenable number.

23214021 is a deficient number, since it is larger than the sum of its proper divisors (8111259).

23214021 is an equidigital number, since it uses as much as digits as its factorization.

23214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93315.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 23214021 is about 4818.0930875192. The cubic root of 23214021 is about 285.2660734641.

Adding to 23214021 its reverse (12041232), we get a palindrome (35255253).

The spelling of 23214021 in words is "twenty-three million, two hundred fourteen thousand, twenty-one".

Divisors: 1 3 83 249 93229 279687 7738007 23214021