[go: up one dir, main page]

Search a number
-
+
13145015 = 513202231
BaseRepresentation
bin110010001001…
…001110110111
3220201211120102
4302021032313
511331120030
61145424315
7216505442
oct62111667
926654512
1013145015
117469054
12449b09b
132953220
141a62659
151249c45
hexc893b7

13145015 has 8 divisors (see below), whose sum is σ = 16987488. Its totient is φ = 9707040.

The previous prime is 13145009. The next prime is 13145021. The reversal of 13145015 is 51054131.

It is an interprime number because it is at equal distance from previous prime (13145009) and next prime (13145021).

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

It is not a de Polignac number, because 13145015 - 220 = 12096439 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 101051 + ... + 101180.

It is an arithmetic number, because the mean of its divisors is an integer number (2123436).

Almost surely, 213145015 is an apocalyptic number.

13145015 is a deficient number, since it is larger than the sum of its proper divisors (3842473).

13145015 is a wasteful number, since it uses less digits than its factorization.

13145015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202249.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 13145015 is about 3625.6054666773. The cubic root of 13145015 is about 236.0045424291.

Adding to 13145015 its reverse (51054131), we get a palindrome (64199146).

The spelling of 13145015 in words is "thirteen million, one hundred forty-five thousand, fifteen".

Divisors: 1 5 13 65 202231 1011155 2629003 13145015