Search a number
-
+
3011212213 = 4370028191
BaseRepresentation
bin1011001101111011…
…0111001110110101
321202212010102121021
42303132313032311
522131332242323
61214444421141
7134422611232
oct26336671665
97685112537
103011212213
111305829339
127005477b1
1338cb0ba99
14207cc4789
1512955b05d
hexb37b73b5

3011212213 has 4 divisors (see below), whose sum is σ = 3081240448. Its totient is φ = 2941183980.

The previous prime is 3011212163. The next prime is 3011212247. The reversal of 3011212213 is 3122121103.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3122121103 = 4003977977.

It is a cyclic number.

It is not a de Polignac number, because 3011212213 - 29 = 3011211701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011212273) 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, 35014053 + ... + 35014138.

It is an arithmetic number, because the mean of its divisors is an integer number (770310112).

Almost surely, 23011212213 is an apocalyptic number.

It is an amenable number.

3011212213 is a deficient number, since it is larger than the sum of its proper divisors (70028235).

3011212213 is an equidigital number, since it uses as much as digits as its factorization.

3011212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70028234.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3011212213 is about 54874.5133281380. The cubic root of 3011212213 is about 1444.0440931395.

Adding to 3011212213 its reverse (3122121103), we get a palindrome (6133333316).

The spelling of 3011212213 in words is "three billion, eleven million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 43 70028191 3011212213