Search a number
-
+
13158485 = 55774561
BaseRepresentation
bin110010001100…
…100001010101
3220202112001022
4302030201111
511332032420
61150010525
7216562634
oct62144125
926675038
1013158485
11747818a
1244a6a45
1329593b2
141a6751b
15124dc25
hexc8c855

13158485 has 8 divisors (see below), whose sum is σ = 15821016. Its totient is φ = 10506240.

The previous prime is 13158479. The next prime is 13158487. The reversal of 13158485 is 58485131.

It can be written as a sum of positive squares in 4 ways, for example, as 4056196 + 9102289 = 2014^2 + 3017^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-13158485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13158487) 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, 605 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (1977627).

Almost surely, 213158485 is an apocalyptic number.

It is an amenable number.

13158485 is a deficient number, since it is larger than the sum of its proper divisors (2662531).

13158485 is an equidigital number, since it uses as much as digits as its factorization.

13158485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its digits is 19200, while the sum is 35.

The square root of 13158485 is about 3627.4626117991. The cubic root of 13158485 is about 236.0851280084.

The spelling of 13158485 in words is "thirteen million, one hundred fifty-eight thousand, four hundred eighty-five".

Divisors: 1 5 577 2885 4561 22805 2631697 13158485