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65982 = 2371571
BaseRepresentation
bin10000000110111110
310100111210
4100012332
54102412
61225250
7363240
oct200676
9110453
1065982
1145634
1232226
1324057
141a090
151483c
hex101be

65982 has 16 divisors (see below), whose sum is σ = 150912. Its totient is φ = 18840.

The previous prime is 65981. The next prime is 65983. The reversal of 65982 is 28956.

It is an interprime number because it is at equal distance from previous prime (65981) and next prime (65983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (9432).

265982 is an apocalyptic number.

65982 is an abundant number, since it is smaller than the sum of its proper divisors (84930).

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 (75456).

65982 is a wasteful number, since it uses less digits than its factorization.

65982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its digits is 4320, while the sum is 30.

The square root of 65982 is about 256.8696167319. The cubic root of 65982 is about 40.4087260176.

It can be divided in two parts, 659 and 82, that added together give a triangular number (741 = T38).

The spelling of 65982 in words is "sixty-five thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 1571 3142 4713 9426 10997 21994 32991 65982