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20316060 = 22325591913
BaseRepresentation
bin100110101111…
…1111110011100
31102020011101200
41031133332130
520200103220
62003235500
7334453332
oct115377634
942204350
1020316060
1110516836
126978b90
13429424b
1429abb52
151bb4890
hex135ff9c

20316060 has 72 divisors (see below), whose sum is σ = 62702640. Its totient is φ = 5323008.

The previous prime is 20316041. The next prime is 20316077. The reversal of 20316060 is 6061302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9664 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (870870).

Almost surely, 220316060 is an apocalyptic number.

20316060 is a gapful number since it is divisible by the number (20) 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 20316060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31351320).

20316060 is an abundant number, since it is smaller than the sum of its proper divisors (42386580).

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

20316060 is a wasteful number, since it uses less digits than its factorization.

20316060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20316060 is about 4507.3340235665. The cubic root of 20316060 is about 272.8641597671.

Adding to 20316060 its reverse (6061302), we get a palindrome (26377362).

The spelling of 20316060 in words is "twenty million, three hundred sixteen thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 59 60 90 118 177 180 236 295 354 531 590 708 885 1062 1180 1770 1913 2124 2655 3540 3826 5310 5739 7652 9565 10620 11478 17217 19130 22956 28695 34434 38260 57390 68868 86085 112867 114780 172170 225734 338601 344340 451468 564335 677202 1015803 1128670 1354404 1693005 2031606 2257340 3386010 4063212 5079015 6772020 10158030 20316060