Search a number
-
+
213194069 = 1197199807
BaseRepresentation
bin11001011010100…
…01010101010101
3112212011101021122
430231101111111
5414034202234
633053253325
75166056024
oct1455212525
9485141248
10213194069
11aa384950
125b494245
133522694a
14204588bb
1513ab392e
hexcb51555

213194069 has 8 divisors (see below), whose sum is σ = 234974208. Its totient is φ = 191813760.

The previous prime is 213194063. The next prime is 213194089. The reversal of 213194069 is 960491312.

213194069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 213194069 - 24 = 213194053 is a prime.

It is a super-2 number, since 2×2131940692 = 90903422113553522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213194063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98837 + ... + 100970.

It is an arithmetic number, because the mean of its divisors is an integer number (29371776).

Almost surely, 2213194069 is an apocalyptic number.

It is an amenable number.

213194069 is a deficient number, since it is larger than the sum of its proper divisors (21780139).

213194069 is a wasteful number, since it uses less digits than its factorization.

213194069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199915.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 213194069 is about 14601.1666999593. The cubic root of 213194069 is about 597.3905837705.

The spelling of 213194069 in words is "two hundred thirteen million, one hundred ninety-four thousand, sixty-nine".

Divisors: 1 11 97 1067 199807 2197877 19381279 213194069