Base | Representation |
---|---|
bin | 10101101000000101… |
… | …001010010111100010 |
3 | 2012221022110001012121 |
4 | 111220011022113202 |
5 | 340024040121010 |
6 | 14400111014454 |
7 | 1451303262100 |
oct | 255005122742 |
9 | 65838401177 |
10 | 23221020130 |
11 | 993672a130 |
12 | 460080a42a |
13 | 2260ac5cc9 |
14 | 11a3dc2c70 |
15 | 90d91c3da |
hex | 56814a5e2 |
23221020130 has 96 divisors (see below), whose sum is σ = 53834663232. Its totient is φ = 7129584000.
The previous prime is 23221020101. The next prime is 23221020131. The reversal of 23221020130 is 3102012232.
It is not an unprimeable number, because it can be changed into a prime (23221020131) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328980 + ... + 393280.
It is an arithmetic number, because the mean of its divisors is an integer number (560777742).
Almost surely, 223221020130 is an apocalyptic number.
23221020130 is an abundant number, since it is smaller than the sum of its proper divisors (30613643102).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23221020130 is a wasteful number, since it uses less digits than its factorization.
23221020130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64400 (or 64393 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 23221020130 its reverse (3102012232), we get a palindrome (26323032362).
The spelling of 23221020130 in words is "twenty-three billion, two hundred twenty-one million, twenty thousand, one hundred thirty".
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