Search a number
-
+
12702287 = 135916561
BaseRepresentation
bin110000011101…
…001001001111
3212220100021002
4300131021033
511222433122
61132130515
7212652623
oct60351117
925810232
1012702287
117196464
124306a3b
132829860
141989183
1511ad992
hexc1d24f

12702287 has 8 divisors (see below), whose sum is σ = 13912080. Its totient is φ = 11525760.

The previous prime is 12702227. The next prime is 12702289. The reversal of 12702287 is 78220721.

12702287 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 12702287 - 26 = 12702223 is a prime.

It is a super-2 number, since 2×127022872 = 322696190060738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12702289) 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, 7514 + ... + 9047.

It is an arithmetic number, because the mean of its divisors is an integer number (1739010).

Almost surely, 212702287 is an apocalyptic number.

12702287 is a deficient number, since it is larger than the sum of its proper divisors (1209793).

12702287 is a wasteful number, since it uses less digits than its factorization.

12702287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16633.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12702287 is about 3564.0267956344. The cubic root of 12702287 is about 233.3246593147.

The spelling of 12702287 in words is "twelve million, seven hundred two thousand, two hundred eighty-seven".

Divisors: 1 13 59 767 16561 215293 977099 12702287