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12228123319 = 71971775537
BaseRepresentation
bin10110110001101101…
…00101101010110111
31011120012101000201021
423120312211222313
5200020344421234
65341215042011
7612011222206
oct133066455267
934505330637
1012228123319
115205503045
122453210307
1311cb4b7839
1484004123d
154b87d29b4
hex2d8da5ab7

12228123319 has 8 divisors (see below), whose sum is σ = 12528196128. Its totient is φ = 11931601920.

The previous prime is 12228123317. The next prime is 12228123337. The reversal of 12228123319 is 91332182221.

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 12228123319 - 21 = 12228123317 is a prime.

It is a super-2 number, since 2×122281233192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228123317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880882 + ... + 894655.

It is an arithmetic number, because the mean of its divisors is an integer number (1566024516).

Almost surely, 212228123319 is an apocalyptic number.

12228123319 is a deficient number, since it is larger than the sum of its proper divisors (300072809).

12228123319 is an equidigital number, since it uses as much as digits as its factorization.

12228123319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775705.

The product of its digits is 10368, while the sum is 34.

The spelling of 12228123319 in words is "twelve billion, two hundred twenty-eight million, one hundred twenty-three thousand, three hundred nineteen".

Divisors: 1 71 97 6887 1775537 126063127 172227089 12228123319