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12226307272 = 2312712033767
BaseRepresentation
bin10110110001011111…
…01010010011001000
31011120001221202120021
423120233222103020
5200014413313042
65341112110224
7611656616464
oct133057522310
934501852507
1012226307272
115204482683
122452695374
1311cb00005a
1483dacb4a4
154b8574867
hex2d8bea4c8

12226307272 has 16 divisors (see below), whose sum is σ = 23104834560. Its totient is φ = 6065018064.

The previous prime is 12226307263. The next prime is 12226307293. The reversal of 12226307272 is 27270362221.

12226307272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6015868 + ... + 6017899.

It is an arithmetic number, because the mean of its divisors is an integer number (1444052160).

Almost surely, 212226307272 is an apocalyptic number.

It is an amenable number.

12226307272 is a deficient number, since it is larger than the sum of its proper divisors (10878527288).

12226307272 is a wasteful number, since it uses less digits than its factorization.

12226307272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033900 (or 12033896 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 12226307272 its reverse (27270362221), we get a palindrome (39496669493).

The spelling of 12226307272 in words is "twelve billion, two hundred twenty-six million, three hundred seven thousand, two hundred seventy-two".

Divisors: 1 2 4 8 127 254 508 1016 12033767 24067534 48135068 96270136 1528288409 3056576818 6113153636 12226307272