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10810020 = 22351313859
BaseRepresentation
bin101001001111…
…001010100100
3202100012120010
4221033022210
510231410040
61023410220
7160612044
oct51171244
922305503
1010810020
116113801
123753970
132316480
141615724
15e37e80
hexa4f2a4

10810020 has 48 divisors (see below), whose sum is σ = 32598720. Its totient is φ = 2660736.

The previous prime is 10810013. The next prime is 10810021. The reversal of 10810020 is 2001801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10809978 and 10810005.

It is not an unprimeable number, because it can be changed into a prime (10810021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6150 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (679140).

Almost surely, 210810020 is an apocalyptic number.

10810020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10810020 is an abundant number, since it is smaller than the sum of its proper divisors (21788700).

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

10810020 is a wasteful number, since it uses less digits than its factorization.

10810020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13884 (or 13882 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10810020 is about 3287.8594860486. The cubic root of 10810020 is about 221.1102280397.

Adding to 10810020 its reverse (2001801), we get a palindrome (12811821).

The spelling of 10810020 in words is "ten million, eight hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 13859 27718 41577 55436 69295 83154 138590 166308 180167 207885 277180 360334 415770 540501 720668 831540 900835 1081002 1801670 2162004 2702505 3603340 5405010 10810020