Search a number
-
+
12905233 = 112235261
BaseRepresentation
bin110001001110…
…101100010001
3220021122122121
4301032230101
511300431413
61140334241
7214456405
oct61165421
926248577
1012905233
117314990
1243a4381
13289b043
1419dd105
1511edb8d
hexc4eb11

12905233 has 8 divisors (see below), whose sum is σ = 14144256. Its totient is φ = 11677200.

The previous prime is 12905219. The next prime is 12905251. The reversal of 12905233 is 33250921.

It is a happy number.

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 12905233 - 217 = 12774161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12905198 and 12905207.

It is not an unprimeable number, because it can be changed into a prime (12995233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 178 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (1768032).

Almost surely, 212905233 is an apocalyptic number.

It is an amenable number.

12905233 is a deficient number, since it is larger than the sum of its proper divisors (1239023).

12905233 is a wasteful number, since it uses less digits than its factorization.

12905233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 12905233 is about 3592.3854191888. The cubic root of 12905233 is about 234.5607185283.

The spelling of 12905233 in words is "twelve million, nine hundred five thousand, two hundred thirty-three".

Divisors: 1 11 223 2453 5261 57871 1173203 12905233