Search a number
-
+
83478 = 2313913
BaseRepresentation
bin10100011000010110
311020111210
4110120112
510132403
61442250
7465243
oct243026
9136453
1083478
115779a
1240386
132bcc5
14225ca
1519b03
hex14616

83478 has 8 divisors (see below), whose sum is σ = 166968. Its totient is φ = 27824.

The previous prime is 83477. The next prime is 83497. The reversal of 83478 is 87438.

It is a sphenic number, since it is the product of 3 distinct primes.

83478 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83471) 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, 6951 + ... + 6962.

It is an arithmetic number, because the mean of its divisors is an integer number (20871).

283478 is an apocalyptic number.

83478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83484).

83478 is a wasteful number, since it uses less digits than its factorization.

83478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918.

The product of its digits is 5376, while the sum is 30.

The square root of 83478 is about 288.9255959585. The cubic root of 83478 is about 43.7042842195.

It can be divided in two parts, 83 and 478, that added together give a triangular number (561 = T33).

The spelling of 83478 in words is "eighty-three thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 13913 27826 41739 83478