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22312202401 = 37359818237
BaseRepresentation
bin10100110001111010…
…010011000010100001
32010120222100022122201
4110301322103002201
5331143410434101
614130003533201
71416626406526
oct246172230241
963528308581
1022312202401
11950a7249a5
1243a838a201
132147732c38
14111940d14d
158a8c4ce01
hex531e930a1

22312202401 has 4 divisors (see below), whose sum is σ = 22372021012. Its totient is φ = 22252383792.

The previous prime is 22312202399. The next prime is 22312202441. The reversal of 22312202401 is 10420221322.

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 19265162401 + 3047040000 = 138799^2 + 55200^2 .

It is a cyclic number.

It is not a de Polignac number, because 22312202401 - 21 = 22312202399 is a prime.

It is a super-3 number, since 3×223122024013 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22312202441) 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, 29908746 + ... + 29909491.

It is an arithmetic number, because the mean of its divisors is an integer number (5593005253).

Almost surely, 222312202401 is an apocalyptic number.

It is an amenable number.

22312202401 is a deficient number, since it is larger than the sum of its proper divisors (59818611).

22312202401 is an equidigital number, since it uses as much as digits as its factorization.

22312202401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59818610.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22312202401 its reverse (10420221322), we get a palindrome (32732423723).

The spelling of 22312202401 in words is "twenty-two billion, three hundred twelve million, two hundred two thousand, four hundred one".

Divisors: 1 373 59818237 22312202401