Search a number
-
+
12694261 = 194331543
BaseRepresentation
bin110000011011…
…001011110101
3212212221020211
4300123023311
511222204021
61132025421
7212620336
oct60331365
925787224
1012694261
117190428
124302271
132825cc8
14198628d
1511ab3e1
hexc1b2f5

12694261 has 8 divisors (see below), whose sum is σ = 13401920. Its totient is φ = 11990592.

The previous prime is 12694259. The next prime is 12694271. The reversal of 12694261 is 16249621.

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 12694261 - 21 = 12694259 is a prime.

It is a super-2 number, since 2×126942612 = 322288524672242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12694271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7456 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (1675240).

Almost surely, 212694261 is an apocalyptic number.

It is an amenable number.

12694261 is a deficient number, since it is larger than the sum of its proper divisors (707659).

12694261 is a wasteful number, since it uses less digits than its factorization.

12694261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995.

The product of its digits is 5184, while the sum is 31.

The square root of 12694261 is about 3562.9006441381. The cubic root of 12694261 is about 233.2755065317.

The spelling of 12694261 in words is "twelve million, six hundred ninety-four thousand, two hundred sixty-one".

Divisors: 1 19 433 1543 8227 29317 668119 12694261