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8082131 = 23351397
BaseRepresentation
bin11110110101001011010011
3120012121121012
4132311023103
54032112011
6445121135
7125461031
oct36651323
916177535
108082131
114620252
1228591ab
13189c935
141105551
15a99a8b
hex7b52d3

8082131 has 4 divisors (see below), whose sum is σ = 8433552. Its totient is φ = 7730712.

The previous prime is 8082127. The next prime is 8082161. The reversal of 8082131 is 1312808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8082131 - 22 = 8082127 is a prime.

It is a super-2 number, since 2×80821312 = 130641683002322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 351397 = 8082131 / (8 + 0 + 8 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8082097 and 8082106.

It is not an unprimeable number, because it can be changed into a prime (8082161) 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, 175676 + ... + 175721.

It is an arithmetic number, because the mean of its divisors is an integer number (2108388).

Almost surely, 28082131 is an apocalyptic number.

8082131 is a deficient number, since it is larger than the sum of its proper divisors (351421).

8082131 is a wasteful number, since it uses less digits than its factorization.

8082131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351420.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8082131 is about 2842.9088975906. The cubic root of 8082131 is about 200.6820960801.

Adding to 8082131 its reverse (1312808), we get a palindrome (9394939).

The spelling of 8082131 in words is "eight million, eighty-two thousand, one hundred thirty-one".

Divisors: 1 23 351397 8082131