Search a number
-
+
12913927 = 135318743
BaseRepresentation
bin110001010000…
…110100000111
3220022002120121
4301100310013
511301221202
61140442411
7214523635
oct61206407
926262517
1012913927
117320474
1243a9407
1328a1ca0
141a02355
151201537
hexc50d07

12913927 has 8 divisors (see below), whose sum is σ = 14170464. Its totient is φ = 11695008.

The previous prime is 12913921. The next prime is 12913933. The reversal of 12913927 is 72931921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12913921) and next prime (12913933).

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

It is not a de Polignac number, because 12913927 - 211 = 12911879 is a prime.

It is a super-2 number, since 2×129139272 = 333539021122658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12913892 and 12913901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12913921) 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, 8683 + ... + 10060.

It is an arithmetic number, because the mean of its divisors is an integer number (1771308).

Almost surely, 212913927 is an apocalyptic number.

12913927 is a deficient number, since it is larger than the sum of its proper divisors (1256537).

12913927 is a wasteful number, since it uses less digits than its factorization.

12913927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18809.

The product of its digits is 6804, while the sum is 34.

The square root of 12913927 is about 3593.5952749301. The cubic root of 12913927 is about 234.6133796754.

The spelling of 12913927 in words is "twelve million, nine hundred thirteen thousand, nine hundred twenty-seven".

Divisors: 1 13 53 689 18743 243659 993379 12913927