Search a number
-
+
2223333230021 = 109157129920717
BaseRepresentation
bin100000010110101000111…
…111001100010111000101
321212112210220201102200222
4200112220333030113011
5242411341301330041
64421215111114125
7316426161431531
oct40265077142705
97775726642628
102223333230021
11787a01712062
122baa91972945
131318759a6717
1479877802bc1
153cc79b3674b
hex205a8fcc5c5

2223333230021 has 8 divisors (see below), whose sum is σ = 2258022078840. Its totient is φ = 2188904223168.

The previous prime is 2223333230009. The next prime is 2223333230047. The reversal of 2223333230021 is 1200323333222.

It can be written as a sum of positive squares in 4 ways, for example, as 170457508225 + 2052875721796 = 412865^2 + 1432786^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2223333230021 is a prime.

It is a super-2 number, since 2×22233332300212 (a number of 25 digits) 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 (2223333230081) 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, 64943246 + ... + 64977471.

It is an arithmetic number, because the mean of its divisors is an integer number (282252759855).

Almost surely, 22223333230021 is an apocalyptic number.

It is an amenable number.

2223333230021 is a deficient number, since it is larger than the sum of its proper divisors (34688848819).

2223333230021 is a wasteful number, since it uses less digits than its factorization.

2223333230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129920983.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 2223333230021 its reverse (1200323333222), we get a palindrome (3423656563243).

The spelling of 2223333230021 in words is "two trillion, two hundred twenty-three billion, three hundred thirty-three million, two hundred thirty thousand, twenty-one".

Divisors: 1 109 157 17113 129920717 14161358153 20397552569 2223333230021