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22010130 = 234529937
BaseRepresentation
bin101001111110…
…1100100010010
31112102020020000
41103331210102
521113311010
62103430430
7355040322
oct123754422
945366200
1022010130
111147359a
127455416
13473835c
142ccd282
151deb7c0
hex14fd912

22010130 has 80 divisors (see below), whose sum is σ = 61288920. Its totient is φ = 5660928.

The previous prime is 22010129. The next prime is 22010137. The reversal of 22010130 is 3101022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12257001 + 9753129 = 3501^2 + 3123^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22010137) 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 39 ways as a sum of consecutive naturals, for example, 23022 + ... + 23958.

Almost surely, 222010130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22010130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30644460).

22010130 is an abundant number, since it is smaller than the sum of its proper divisors (39278790).

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

22010130 is a wasteful number, since it uses less digits than its factorization.

22010130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 22010130 is about 4691.4954971736. The cubic root of 22010130 is about 280.2469335245.

Adding to 22010130 its reverse (3101022), we get a palindrome (25111152).

The spelling of 22010130 in words is "twenty-two million, ten thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 29 30 45 54 58 81 87 90 135 145 162 174 261 270 290 405 435 522 783 810 870 937 1305 1566 1874 2349 2610 2811 3915 4685 4698 5622 7830 8433 9370 11745 14055 16866 23490 25299 27173 28110 42165 50598 54346 75897 81519 84330 126495 135865 151794 163038 244557 252990 271730 379485 407595 489114 733671 758970 815190 1222785 1467342 2201013 2445570 3668355 4402026 7336710 11005065 22010130