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83481 = 327827
BaseRepresentation
bin10100011000011001
311020111220
4110120121
510132411
61442253
7465246
oct243031
9136456
1083481
11577a2
1240389
132bcc8
14225cd
1519b06
hex14619

83481 has 4 divisors (see below), whose sum is σ = 111312. Its totient is φ = 55652.

The previous prime is 83477. The next prime is 83497. The reversal of 83481 is 18438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83481 - 22 = 83477 is a prime.

It is a super-2 number, since 2×834812 = 13938154722, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 83481.

It is not an unprimeable number, because it can be changed into a prime (83401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13911 + ... + 13916.

It is an arithmetic number, because the mean of its divisors is an integer number (27828).

283481 is an apocalyptic number.

It is an amenable number.

83481 is a deficient number, since it is larger than the sum of its proper divisors (27831).

83481 is a wasteful number, since it uses less digits than its factorization.

83481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27830.

The product of its digits is 768, while the sum is 24.

The square root of 83481 is about 288.9307875599. The cubic root of 83481 is about 43.7048077558.

The spelling of 83481 in words is "eighty-three thousand, four hundred eighty-one".

Divisors: 1 3 27827 83481