Search a number
-
+
13012465 = 53497457
BaseRepresentation
bin110001101000…
…110111110001
3220111002202011
4301220313301
511312344330
61142522521
7215414134
oct61506761
926432664
1013012465
117388504
124436441
132907aab
141a2a21b
15122082a
hexc68df1

13012465 has 8 divisors (see below), whose sum is σ = 15661800. Its totient is φ = 10378752.

The previous prime is 13012427. The next prime is 13012471. The reversal of 13012465 is 56421031.

13012465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 11553201 = 1208^2 + 3399^2 .

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 13012465 - 215 = 12979697 is a prime.

It is an unprimeable number.

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, 1984 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (1957725).

Almost surely, 213012465 is an apocalyptic number.

It is an amenable number.

13012465 is a deficient number, since it is larger than the sum of its proper divisors (2649335).

13012465 is an equidigital number, since it uses as much as digits as its factorization.

13012465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7811.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13012465 is about 3607.2794457874. The cubic root of 13012465 is about 235.2085970391.

Adding to 13012465 its reverse (56421031), we get a palindrome (69433496).

The spelling of 13012465 in words is "thirteen million, twelve thousand, four hundred sixty-five".

Divisors: 1 5 349 1745 7457 37285 2602493 13012465