Search a number
-
+
240022044221 = 731813279841
BaseRepresentation
bin1101111110001001101…
…1011011111000111101
3211221112112211011222112
43133202123123320331
512413031120403341
6302133053223405
723224653466451
oct3374233337075
9757475734875
10240022044221
119287a206403
123a626a91b65
1319831b1c44b
14b88d58a661
15639bd62aeb
hex37e26dbe3d

240022044221 has 4 divisors (see below), whose sum is σ = 240025397244. Its totient is φ = 240018691200.

The previous prime is 240022044191. The next prime is 240022044233. The reversal of 240022044221 is 122440220042.

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 18238502500 + 221783541721 = 135050^2 + 470939^2 .

It is a cyclic number.

It is not a de Polignac number, because 240022044221 - 214 = 240022027837 is a prime.

It is a super-2 number, since 2×2400220442212 (a number of 24 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 (240022044121) 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, 1566740 + ... + 1713101.

It is an arithmetic number, because the mean of its divisors is an integer number (60006349311).

Almost surely, 2240022044221 is an apocalyptic number.

It is an amenable number.

240022044221 is a deficient number, since it is larger than the sum of its proper divisors (3353023).

240022044221 is an equidigital number, since it uses as much as digits as its factorization.

240022044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353022.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 240022044221 its reverse (122440220042), we get a palindrome (362462264263).

The spelling of 240022044221 in words is "two hundred forty billion, twenty-two million, forty-four thousand, two hundred twenty-one".

Divisors: 1 73181 3279841 240022044221