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34581131 = 132660087
BaseRepresentation
bin1000001111101…
…0101010001011
32102001220101122
42003322222023
532323044011
63233105455
7566635424
oct203725213
972056348
1034581131
111857a352
12b6b828b
13721a210
14484264b
1530813db
hex20faa8b

34581131 has 4 divisors (see below), whose sum is σ = 37241232. Its totient is φ = 31921032.

The previous prime is 34581119. The next prime is 34581133. The reversal of 34581131 is 13118543.

34581131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13118543 = 17771679.

It is not a de Polignac number, because 34581131 - 26 = 34581067 is a prime.

It is a super-2 number, since 2×345811312 = 2391709242478322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34581131.

It is not an unprimeable number, because it can be changed into a prime (34581133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1330031 + ... + 1330056.

It is an arithmetic number, because the mean of its divisors is an integer number (9310308).

Almost surely, 234581131 is an apocalyptic number.

34581131 is a deficient number, since it is larger than the sum of its proper divisors (2660101).

34581131 is a wasteful number, since it uses less digits than its factorization.

34581131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660100.

The product of its digits is 1440, while the sum is 26.

The square root of 34581131 is about 5880.5723360911. The cubic root of 34581131 is about 325.7964874548.

Adding to 34581131 its reverse (13118543), we get a palindrome (47699674).

The spelling of 34581131 in words is "thirty-four million, five hundred eighty-one thousand, one hundred thirty-one".

Divisors: 1 13 2660087 34581131