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12743129 = 71995813
BaseRepresentation
bin110000100111…
…000111011001
3212222102021202
4300213013121
511230240004
61133043545
7213212660
oct60470731
925872252
1012743129
117214113
1243265b5
132842319
141999dd7
1511bab1e
hexc271d9

12743129 has 8 divisors (see below), whose sum is σ = 15330240. Its totient is φ = 10347696.

The previous prime is 12743119. The next prime is 12743131. The reversal of 12743129 is 92134721.

12743129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12743129 - 24 = 12743113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12743119) 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, 47774 + ... + 48039.

It is an arithmetic number, because the mean of its divisors is an integer number (1916280).

Almost surely, 212743129 is an apocalyptic number.

12743129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12743129 is a deficient number, since it is larger than the sum of its proper divisors (2587111).

12743129 is an equidigital number, since it uses as much as digits as its factorization.

12743129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95839.

The product of its digits is 3024, while the sum is 29.

The square root of 12743129 is about 3569.7519521670. The cubic root of 12743129 is about 233.5744634252.

The spelling of 12743129 in words is "twelve million, seven hundred forty-three thousand, one hundred twenty-nine".

Divisors: 1 7 19 133 95813 670691 1820447 12743129