| Base | Representation |
|---|---|
| bin | 10101010101010101… |
| … | …010101010101010000 |
| 3 | 2012010101121101001111 |
| 4 | 111111111111111100 |
| 5 | 333403030222430 |
| 6 | 14304553343104 |
| 7 | 1440433654132 |
| oct | 252525252520 |
| 9 | 65111541044 |
| 10 | 22906492240 |
| 11 | 9795132725 |
| 12 | 4533407a94 |
| 13 | 22108ac728 |
| 14 | 117430b052 |
| 15 | 8e0eddc2a |
| hex | 555555550 |
22906492240 has 80 divisors (see below), whose sum is σ = 56610675792. Its totient is φ = 8589934592.
The previous prime is 22906492211. The next prime is 22906492243. The reversal of 22906492240 is 4229460922.
It can be written as a sum of positive squares in 8 ways, for example, as 11692529424 + 11213962816 = 108132^2 + 105896^2 .
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a nialpdrome in base 4 and base 16.
It is a zygodrome in base 4.
It is a junction number, because it is equal to n+sod(n) for n = 22906492193 and 22906492202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22906492243) by changing a digit.
In principle, a polygon with 22906492240 sides can be constructed with ruler and compass.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316752 + ... + 382288.
Almost surely, 222906492240 is an apocalyptic number.
22906492240 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 22906492240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28305337896).
22906492240 is an abundant number, since it is smaller than the sum of its proper divisors (33704183552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22906492240 is a wasteful number, since it uses less digits than its factorization.
22906492240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65824 (or 65818 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 40.
The spelling of 22906492240 in words is "twenty-two billion, nine hundred six million, four hundred ninety-two thousand, two hundred forty".
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