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12903206 = 221373019
BaseRepresentation
bin110001001110…
…001100100110
3220021112212112
4301032030212
511300400311
61140321022
7214450451
oct61161446
926245775
1012903206
117313408
1243a3172
13289a144
1419dc498
1511ed28b
hexc4e326

12903206 has 8 divisors (see below), whose sum is σ = 19370280. Its totient is φ = 6446448.

The previous prime is 12903197. The next prime is 12903211. The reversal of 12903206 is 60230921.

12903206 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (2421285).

Almost surely, 212903206 is an apocalyptic number.

12903206 is a deficient number, since it is larger than the sum of its proper divisors (6467074).

12903206 is a wasteful number, since it uses less digits than its factorization.

12903206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12903206 is about 3592.1032835931. The cubic root of 12903206 is about 234.5484372191.

The spelling of 12903206 in words is "twelve million, nine hundred three thousand, two hundred six".

Divisors: 1 2 2137 3019 4274 6038 6451603 12903206