Search a number
-
+
1982022 = 237411151
BaseRepresentation
bin111100011111001000110
310201200211020
413203321012
51001411042
6110252010
722563330
oct7437106
93650736
101982022
111134139
127b7006
135451c3
14398450
152923ec
hex1e3e46

1982022 has 32 divisors (see below), whose sum is σ = 4644864. Its totient is φ = 552000.

The previous prime is 1982021. The next prime is 1982033. The reversal of 1982022 is 2202891.

It is a super-2 number, since 2×19820222 = 7856822416968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1981983 and 1982001.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

21982022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1982022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2322432).

1982022 is an abundant number, since it is smaller than the sum of its proper divisors (2662842).

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

1982022 is a wasteful number, since it uses less digits than its factorization.

1982022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1982022 is about 1407.8430310230. The cubic root of 1982022 is about 125.6134538038.

The spelling of 1982022 in words is "one million, nine hundred eighty-two thousand, twenty-two".

Divisors: 1 2 3 6 7 14 21 41 42 82 123 246 287 574 861 1151 1722 2302 3453 6906 8057 16114 24171 47191 48342 94382 141573 283146 330337 660674 991011 1982022