Search a number
-
+
182020 = 22519479
BaseRepresentation
bin101100011100000100
3100020200111
4230130010
521311040
63522404
71355446
oct543404
9306614
10182020
11114833
1289404
1364b07
144a496
1538dea
hex2c704

182020 has 24 divisors (see below), whose sum is σ = 403200. Its totient is φ = 68832.

The previous prime is 182011. The next prime is 182027. The reversal of 182020 is 20281.

182020 = T8 + T9 + ... + T102.

It is not an unprimeable number, because it can be changed into a prime (182027) by changing a digit.

182020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 141 + ... + 619.

It is an arithmetic number, because the mean of its divisors is an integer number (16800).

2182020 is an apocalyptic number.

182020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 182020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201600).

182020 is an abundant number, since it is smaller than the sum of its proper divisors (221180).

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

182020 is a wasteful number, since it uses less digits than its factorization.

182020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 182020 is about 426.6380198716. The cubic root of 182020 is about 56.6725868478.

The spelling of 182020 in words is "one hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 479 958 1916 2395 4790 9101 9580 18202 36404 45505 91010 182020