Search a number
-
+
13497143 = 1110911257
BaseRepresentation
bin110011011111…
…001100110111
3221101201121012
4303133030313
511423402033
61201142435
7222503162
oct63371467
927351535
1013497143
117689670
12462aa1b
132a4759a
141b14ad9
1512b9248
hexcdf337

13497143 has 8 divisors (see below), whose sum is σ = 14860560. Its totient is φ = 12156480.

The previous prime is 13497109. The next prime is 13497149. The reversal of 13497143 is 34179431.

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 13497143 - 26 = 13497079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13497149) 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, 4430 + ... + 6827.

It is an arithmetic number, because the mean of its divisors is an integer number (1857570).

Almost surely, 213497143 is an apocalyptic number.

13497143 is a deficient number, since it is larger than the sum of its proper divisors (1363417).

13497143 is a wasteful number, since it uses less digits than its factorization.

13497143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11377.

The product of its digits is 9072, while the sum is 32.

The square root of 13497143 is about 3673.8458051475. The cubic root of 13497143 is about 238.0933595553.

The spelling of 13497143 in words is "thirteen million, four hundred ninety-seven thousand, one hundred forty-three".

Divisors: 1 11 109 1199 11257 123827 1227013 13497143