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2213440423 = 23954716931
BaseRepresentation
bin1000001111101110…
…0110101110100111
312201020222102102221
42003323212232213
514013120043143
61003345413211
7105564635035
oct20373465647
95636872387
102213440423
11a3647a607
1251933a207
1329375917c
1416dd79555
15ce4c42ed
hex83ee6ba7

2213440423 has 8 divisors (see below), whose sum is σ = 2226896640. Its totient is φ = 2200019640.

The previous prime is 2213440421. The next prime is 2213440459. The reversal of 2213440423 is 3240443122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213440423 - 21 = 2213440421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213440421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122268 + ... + 139198.

It is an arithmetic number, because the mean of its divisors is an integer number (278362080).

Almost surely, 22213440423 is an apocalyptic number.

2213440423 is a deficient number, since it is larger than the sum of its proper divisors (13456217).

2213440423 is a wasteful number, since it uses less digits than its factorization.

2213440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2213440423 is about 47047.2148272350. The cubic root of 2213440423 is about 1303.2346319655.

Adding to 2213440423 its reverse (3240443122), we get a palindrome (5453883545).

The spelling of 2213440423 in words is "two billion, two hundred thirteen million, four hundred forty thousand, four hundred twenty-three".

Divisors: 1 239 547 16931 130733 4046509 9261257 2213440423