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22302322020 = 2232511372931039
BaseRepresentation
bin10100110001010100…
…100110110101100100
32010120021202100022200
4110301110212311210
5331133343301040
614125012054500
71416446415666
oct246124466544
963507670280
1022302322020
1195050966a0
1243a5004430
132145683964
141117d9a536
158a7e4a630
hex531526d64

22302322020 has 288 divisors, whose sum is σ = 76126901760. Its totient is φ = 5237498880.

The previous prime is 22302321997. The next prime is 22302322039. The reversal of 22302322020 is 2022320322.

22302322020 is a `hidden beast` number, since 2 + 230 + 232 + 202 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22302321984 and 22302322002.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21464661 + ... + 21465699.

It is an arithmetic number, because the mean of its divisors is an integer number (264329520).

Almost surely, 222302322020 is an apocalyptic number.

22302322020 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 22302322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38063450880).

22302322020 is an abundant number, since it is smaller than the sum of its proper divisors (53824579740).

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

22302322020 is a wasteful number, since it uses less digits than its factorization.

22302322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 22302322020 its reverse (2022320322), we get a palindrome (24324642342).

The spelling of 22302322020 in words is "twenty-two billion, three hundred two million, three hundred twenty-two thousand, twenty".