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213110401 = 730444343
BaseRepresentation
bin11001011001111…
…00111010000001
3112212000010111211
430230330322001
5414024013101
633051410121
75165260060
oct1454747201
9485003454
10213110401
11aa327aa9
125b453941
13351c783a
14204361d7
1513a98c51
hexcb3ce81

213110401 has 4 divisors (see below), whose sum is σ = 243554752. Its totient is φ = 182666052.

The previous prime is 213110389. The next prime is 213110437. The reversal of 213110401 is 104011312.

213110401 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.

It is a cyclic number.

It is not a de Polignac number, because 213110401 - 27 = 213110273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213110501) 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, 15222165 + ... + 15222178.

It is an arithmetic number, because the mean of its divisors is an integer number (60888688).

Almost surely, 2213110401 is an apocalyptic number.

It is an amenable number.

213110401 is a deficient number, since it is larger than the sum of its proper divisors (30444351).

213110401 is an equidigital number, since it uses as much as digits as its factorization.

213110401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30444350.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213110401 is about 14598.3013052889. The cubic root of 213110401 is about 597.3124249118.

Adding to 213110401 its reverse (104011312), we get a palindrome (317121713).

The spelling of 213110401 in words is "two hundred thirteen million, one hundred ten thousand, four hundred one".

Divisors: 1 7 30444343 213110401