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12837429 = 3211129671
BaseRepresentation
bin110000111110…
…001000110101
3220011012122100
4300332020311
511241244204
61135052313
7214054623
oct60761065
926135570
1012837429
117278a50
124371099
132876217
1419c2513
1511d8a39
hexc3e235

12837429 has 12 divisors (see below), whose sum is σ = 20228832. Its totient is φ = 7780200.

The previous prime is 12837373. The next prime is 12837437. The reversal of 12837429 is 92473821.

12837429 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12837429 - 215 = 12804661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12837393 and 12837402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12837479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64737 + ... + 64934.

It is an arithmetic number, because the mean of its divisors is an integer number (1685736).

Almost surely, 212837429 is an apocalyptic number.

It is an amenable number.

12837429 is a deficient number, since it is larger than the sum of its proper divisors (7391403).

12837429 is a wasteful number, since it uses less digits than its factorization.

12837429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129688 (or 129685 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12837429 is about 3582.9358074071. The cubic root of 12837429 is about 234.1492035513.

The spelling of 12837429 in words is "twelve million, eight hundred thirty-seven thousand, four hundred twenty-nine".

Divisors: 1 3 9 11 33 99 129671 389013 1167039 1426381 4279143 12837429