Search a number
-
+
13761269 = 89154621
BaseRepresentation
bin110100011111…
…101011110101
3221220010220122
4310133223311
512010330034
61210541325
7224653214
oct64375365
927803818
1013761269
11784a055
124737845
132b0a882
141b8307b
15131c62e
hexd1faf5

13761269 has 4 divisors (see below), whose sum is σ = 13915980. Its totient is φ = 13606560.

The previous prime is 13761229. The next prime is 13761289. The reversal of 13761269 is 96216731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96216731 = 137401287.

It can be written as a sum of positive squares in 2 ways, for example, as 7360369 + 6400900 = 2713^2 + 2530^2 .

It is a cyclic number.

It is not a de Polignac number, because 13761269 - 216 = 13695733 is a prime.

It is a super-2 number, since 2×137612692 = 378745048980722, 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 (13761229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77222 + ... + 77399.

It is an arithmetic number, because the mean of its divisors is an integer number (3478995).

Almost surely, 213761269 is an apocalyptic number.

It is an amenable number.

13761269 is a deficient number, since it is larger than the sum of its proper divisors (154711).

13761269 is an equidigital number, since it uses as much as digits as its factorization.

13761269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154710.

The product of its digits is 13608, while the sum is 35.

The square root of 13761269 is about 3709.6184439912. The cubic root of 13761269 is about 239.6364228731.

The spelling of 13761269 in words is "thirteen million, seven hundred sixty-one thousand, two hundred sixty-nine".

Divisors: 1 89 154621 13761269