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12427271233 = 1319137443829
BaseRepresentation
bin10111001001011100…
…10001110001000001
31012002002002210021221
423210232101301001
5200422340134413
65413051315041
7616650030316
oct134456216101
935062083257
1012427271233
1152a79638a3
1224a9a4ba81
131230834040
1485c680d0d
154cb01e68d
hex2e4b91c41

12427271233 has 32 divisors (see below), whose sum is σ = 14239612800. Its totient is φ = 10750910976.

The previous prime is 12427271221. The next prime is 12427271261. The reversal of 12427271233 is 33217272421.

It is a de Polignac number, because none of the positive numbers 2k-12427271233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12427271273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14990263 + ... + 14991091.

It is an arithmetic number, because the mean of its divisors is an integer number (444987900).

Almost surely, 212427271233 is an apocalyptic number.

12427271233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12427271233 is a deficient number, since it is larger than the sum of its proper divisors (1812341567).

12427271233 is a wasteful number, since it uses less digits than its factorization.

12427271233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

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

The spelling of 12427271233 in words is "twelve billion, four hundred twenty-seven million, two hundred seventy-one thousand, two hundred thirty-three".

Divisors: 1 13 19 137 247 443 829 1781 2603 5759 8417 10777 15751 33839 60691 109421 113573 204763 367247 788983 1153129 1476449 2157887 4774211 6977693 14990677 28052531 50312839 90710009 654066907 955943941 12427271233