Search a number
-
+
22310000000 = 27572397
BaseRepresentation
bin10100110001110001…
…111001010110000000
32010120211012102112022
4110301301321112000
5331142330000000
614125444421012
71416601604531
oct246161712600
963524172468
1022310000000
119509460232
1243a76a7768
132147141642
141118dd8688
158a8965585
hex531c79580

22310000000 has 256 divisors, whose sum is σ = 58570162560. Its totient is φ = 8448000000.

The previous prime is 22309999993. The next prime is 22310000003. The reversal of 22310000000 is 1322.

It is a super-3 number, since 3×223100000003 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22310000003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229999952 + ... + 230000048.

Almost surely, 222310000000 is an apocalyptic number.

22310000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22310000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29285081280).

22310000000 is an abundant number, since it is smaller than the sum of its proper divisors (36260162560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22310000000 is an frugal number, since it uses more digits than its factorization.

22310000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 22310000000 its reverse (1322), we get a palindrome (22310001322).

The spelling of 22310000000 in words is "twenty-two billion, three hundred ten million", and thus it is an aban number.