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22322020 = 22571783113
BaseRepresentation
bin101010100100…
…1101101100100
31120000002001111
41111021231210
521203301040
62114234404
7360506530
oct125115544
946002044
1022322020
1111666956
127585a04
1348172c6
142d70bc0
151e5ddea
hex1549b64

22322020 has 96 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 7053312.

The previous prime is 22322011. The next prime is 22322021. The reversal of 22322020 is 2022322.

It is a super-3 number, since 3×223220203 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22322021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197484 + ... + 197596.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 222322020 is an apocalyptic number.

22322020 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 22322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28957824).

22322020 is an abundant number, since it is smaller than the sum of its proper divisors (35593628).

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

22322020 is a wasteful number, since it uses less digits than its factorization.

22322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22322020 is about 4724.6185031175. The cubic root of 22322020 is about 281.5644568443.

Adding to 22322020 its reverse (2022322), we get a palindrome (24344342).

The spelling of 22322020 in words is "twenty-two million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 83 85 113 119 140 166 170 226 238 332 340 415 452 476 565 581 595 791 830 1130 1162 1190 1411 1582 1660 1921 2260 2324 2380 2822 2905 3164 3842 3955 5644 5810 7055 7684 7910 9379 9605 9877 11620 13447 14110 15820 18758 19210 19754 26894 28220 37516 38420 39508 46895 49385 53788 65653 67235 93790 98770 131306 134470 159443 187580 197540 262612 268940 318886 328265 637772 656530 797215 1116101 1313060 1594430 2232202 3188860 4464404 5580505 11161010 22322020