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22412331444 = 2234793899153
BaseRepresentation
bin10100110111111000…
…010000100110110100
32010211221202101212210
4110313320100212310
5331400024101234
614143542013420
71422253450116
oct246770204664
963757671783
1022412331444
1195611a4378
124415a17270
1321623c03a9
1411288353b6
158b292abe9
hex537e109b4

22412331444 has 24 divisors (see below), whose sum is σ = 52404629760. Its totient is φ = 7455178624.

The previous prime is 22412331443. The next prime is 22412331449. The reversal of 22412331444 is 44413321422.

It is a super-2 number, since 2×224123314442 (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22412331443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943829 + ... + 1955324.

It is an arithmetic number, because the mean of its divisors is an integer number (2183526240).

Almost surely, 222412331444 is an apocalyptic number.

It is an amenable number.

22412331444 is an abundant number, since it is smaller than the sum of its proper divisors (29992298316).

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

22412331444 is a wasteful number, since it uses less digits than its factorization.

22412331444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899639 (or 3899637 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

Adding to 22412331444 its reverse (44413321422), we get a palindrome (66825652866).

The spelling of 22412331444 in words is "twenty-two billion, four hundred twelve million, three hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 479 958 1437 1916 2874 5748 3899153 7798306 11697459 15596612 23394918 46789836 1867694287 3735388574 5603082861 7470777148 11206165722 22412331444