Search a number
-
+
213893201 = 1712581953
BaseRepresentation
bin11001011111111…
…00000001010001
3112220110220022102
430233330001101
5414224040301
633120250145
75205030224
oct1457740121
9486426272
10213893201
11aa812145
125b770955
133540cc32
142059b5bb
1513ba0b6b
hexcbfc051

213893201 has 4 divisors (see below), whose sum is σ = 226475172. Its totient is φ = 201311232.

The previous prime is 213893179. The next prime is 213893227. The reversal of 213893201 is 102398312.

213893201 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.

It can be written as a sum of positive squares in 2 ways, for example, as 190467601 + 23425600 = 13801^2 + 4840^2 .

It is a cyclic number.

It is not a de Polignac number, because 213893201 - 222 = 209698897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213893101) 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, 6290960 + ... + 6290993.

It is an arithmetic number, because the mean of its divisors is an integer number (56618793).

Almost surely, 2213893201 is an apocalyptic number.

It is an amenable number.

213893201 is a deficient number, since it is larger than the sum of its proper divisors (12581971).

213893201 is a wasteful number, since it uses less digits than its factorization.

213893201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12581970.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 213893201 is about 14625.0880681109. The cubic root of 213893201 is about 598.0428832832.

The spelling of 213893201 in words is "two hundred thirteen million, eight hundred ninety-three thousand, two hundred one".

Divisors: 1 17 12581953 213893201