Search a number
-
+
1982023 = 19731429
BaseRepresentation
bin111100011111001000111
310201200211021
413203321013
51001411043
6110252011
722563331
oct7437107
93650737
101982023
11113413a
127b7007
135451c4
14398451
152923ed
hex1e3e47

1982023 has 8 divisors (see below), whose sum is σ = 2116400. Its totient is φ = 1850688.

The previous prime is 1982021. The next prime is 1982033. The reversal of 1982023 is 3202891.

1982023 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 1982023 - 21 = 1982021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (264550).

21982023 is an apocalyptic number.

1982023 is a deficient number, since it is larger than the sum of its proper divisors (134377).

1982023 is a wasteful number, since it uses less digits than its factorization.

1982023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1982023 is about 1407.8433861762. The cubic root of 1982023 is about 125.6134749293.

The spelling of 1982023 in words is "one million, nine hundred eighty-two thousand, twenty-three".

Divisors: 1 19 73 1387 1429 27151 104317 1982023