Search a number
-
+
83469 = 327823
BaseRepresentation
bin10100011000001101
311020111110
4110120031
510132334
61442233
7465231
oct243015
9136443
1083469
1157791
1240379
132bcb9
14225c1
1519ae9
hex1460d

83469 has 4 divisors (see below), whose sum is σ = 111296. Its totient is φ = 55644.

The previous prime is 83459. The next prime is 83471. The reversal of 83469 is 96438.

It can be divided in two parts, 834 and 69, that added together give a triangular number (903 = T42).

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 not a de Polignac number, because 83469 - 25 = 83437 is a prime.

It is a super-2 number, since 2×834692 = 13934147922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83449) 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, 13909 + ... + 13914.

It is an arithmetic number, because the mean of its divisors is an integer number (27824).

283469 is an apocalyptic number.

It is an amenable number.

83469 is a deficient number, since it is larger than the sum of its proper divisors (27827).

83469 is a wasteful number, since it uses less digits than its factorization.

83469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27826.

The product of its digits is 5184, while the sum is 30.

The square root of 83469 is about 288.9100205946. The cubic root of 83469 is about 43.7027135355.

The spelling of 83469 in words is "eighty-three thousand, four hundred sixty-nine".

Divisors: 1 3 27823 83469