Search a number
-
+
22012130005 = 54402426001
BaseRepresentation
bin10100100000000001…
…100111001011010101
32002211001201001201021
4110200001213023111
5330040101130010
614040124201141
71406324006065
oct244001471325
962731631637
1022012130005
119376301088
1243239991b1
1320ca50b1c8
1410cb61b3a5
1588c7278da
hex5200672d5

22012130005 has 4 divisors (see below), whose sum is σ = 26414556012. Its totient is φ = 17609704000.

The previous prime is 22012129973. The next prime is 22012130017. The reversal of 22012130005 is 50003121022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50003121022 = 225001560511.

It can be written as a sum of positive squares in 2 ways, for example, as 7737137521 + 14274992484 = 87961^2 + 119478^2 .

It is not a de Polignac number, because 22012130005 - 25 = 22012129973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201212996 + ... + 2201213005.

It is an arithmetic number, because the mean of its divisors is an integer number (6603639003).

Almost surely, 222012130005 is an apocalyptic number.

It is an amenable number.

22012130005 is a deficient number, since it is larger than the sum of its proper divisors (4402426007).

22012130005 is an equidigital number, since it uses as much as digits as its factorization.

22012130005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402426006.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 22012130005 its reverse (50003121022), we get a palindrome (72015251027).

The spelling of 22012130005 in words is "twenty-two billion, twelve million, one hundred thirty thousand, five".

Divisors: 1 5 4402426001 22012130005