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12050311143 = 313503614279
BaseRepresentation
bin10110011100100000…
…10010011111100111
31011002210210020021010
423032100102133213
5144134334424033
65311423553303
7604421645313
oct131620223747
934083706233
1012050311143
1151240a5132
12240375b833
1311a06cb730
14824596b43
154a7dac863
hex2ce4127e7

12050311143 has 16 divisors (see below), whose sum is σ = 17337438720. Its totient is φ = 7400821344.

The previous prime is 12050310973. The next prime is 12050311151. The reversal of 12050311143 is 34111305021.

It is not a de Polignac number, because 12050311143 - 29 = 12050310631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050310143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287523 + ... + 326756.

It is an arithmetic number, because the mean of its divisors is an integer number (1083589920).

Almost surely, 212050311143 is an apocalyptic number.

12050311143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12050311143 is a deficient number, since it is larger than the sum of its proper divisors (5287127577).

12050311143 is a wasteful number, since it uses less digits than its factorization.

12050311143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614798.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 12050311143 its reverse (34111305021), we get a palindrome (46161616164).

The spelling of 12050311143 in words is "twelve billion, fifty million, three hundred eleven thousand, one hundred forty-three".

Divisors: 1 3 13 39 503 1509 6539 19617 614279 1842837 7985627 23956881 308982337 926947011 4016770381 12050311143