Search a number
-
+
222021313 = 276780239
BaseRepresentation
bin11010011101111…
…00011011000001
3120110202211222121
431032330123001
5423314140223
634010404241
75334102313
oct1516743301
9513684877
10222021313
11104363998
1262430681
1336cc7777
14216b57b3
151475915d
hexd3bc6c1

222021313 has 4 divisors (see below), whose sum is σ = 222104320. Its totient is φ = 221938308.

The previous prime is 222021311. The next prime is 222021353. The reversal of 222021313 is 313120222.

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 222021313 - 21 = 222021311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222021311) 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, 37353 + ... + 42886.

It is an arithmetic number, because the mean of its divisors is an integer number (55526080).

Almost surely, 2222021313 is an apocalyptic number.

It is an amenable number.

222021313 is a deficient number, since it is larger than the sum of its proper divisors (83007).

222021313 is an equidigital number, since it uses as much as digits as its factorization.

222021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83006.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222021313 is about 14900.3796260364. The cubic root of 222021313 is about 605.5242710968.

Adding to 222021313 its reverse (313120222), we get a palindrome (535141535).

The spelling of 222021313 in words is "two hundred twenty-two million, twenty-one thousand, three hundred thirteen".

Divisors: 1 2767 80239 222021313