Search a number
-
+
20444224310 = 2517120260143
BaseRepresentation
bin10011000010100100…
…100001101100110110
31221202210102012102222
4103002210201230312
5313332210134220
613220354402342
71322425016336
oct230244415466
957683365388
1020444224310
118741260354
123b668903b2
131c0a731763
14dbd2bd0c6
157e9c67e25
hex4c2921b36

20444224310 has 16 divisors (see below), whose sum is σ = 38964286656. Its totient is φ = 7696649088.

The previous prime is 20444224301. The next prime is 20444224313. The reversal of 20444224310 is 1342244402.

It is a happy number.

It is a super-2 number, since 2×204442243102 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20444224310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444224313) 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, 60129902 + ... + 60130241.

It is an arithmetic number, because the mean of its divisors is an integer number (2435267916).

Almost surely, 220444224310 is an apocalyptic number.

20444224310 is a deficient number, since it is larger than the sum of its proper divisors (18520062346).

20444224310 is a wasteful number, since it uses less digits than its factorization.

20444224310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120260167.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20444224310 its reverse (1342244402), we get a palindrome (21786468712).

The spelling of 20444224310 in words is "twenty billion, four hundred forty-four million, two hundred twenty-four thousand, three hundred ten".

Divisors: 1 2 5 10 17 34 85 170 120260143 240520286 601300715 1202601430 2044422431 4088844862 10222112155 20444224310