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12124143 = 321347127
BaseRepresentation
bin101110001111…
…111111101111
3211210222012100
4232033333233
511100433033
61111510143
7205024233
oct56177757
924728170
1012124143
116931059
124088353
132686665
1418785c3
1510e7513
hexb8ffef

12124143 has 6 divisors (see below), whose sum is σ = 17512664. Its totient is φ = 8082756.

The previous prime is 12124139. The next prime is 12124153. The reversal of 12124143 is 34142121.

It is not a de Polignac number, because 12124143 - 22 = 12124139 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 (12124153) 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 5 ways as a sum of consecutive naturals, for example, 673555 + ... + 673572.

Almost surely, 212124143 is an apocalyptic number.

12124143 is a deficient number, since it is larger than the sum of its proper divisors (5388521).

12124143 is a wasteful number, since it uses less digits than its factorization.

12124143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347133 (or 1347130 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 12124143 is about 3481.9740090931. The cubic root of 12124143 is about 229.7296318936.

Adding to 12124143 its reverse (34142121), we get a palindrome (46266264).

The spelling of 12124143 in words is "twelve million, one hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 9 1347127 4041381 12124143