| Base | Representation |
|---|---|
| bin | 10001110011001001011… |
| … | …100000100100000000000 |
| 3 | 11022221011110001201222120 |
| 4 | 101303021130010200000 |
| 5 | 130020002433302234 |
| 6 | 2333524003404240 |
| 7 | 154240542633441 |
| oct | 21631134044000 |
| 9 | 4287143051876 |
| 10 | 1223150290944 |
| 11 | 43180a4a734a |
| 12 | 17907a683680 |
| 13 | 8b45b84830a |
| 14 | 432b4d792c8 |
| 15 | 21c3c2d6049 |
| hex | 11cc9704800 |
1223150290944 has 192 divisors, whose sum is σ = 3302620776000. Its totient is φ = 402519490560.
The previous prime is 1223150290939. The next prime is 1223150290949. The reversal of 1223150290944 is 4490920513221.
It is an interprime number because it is at equal distance from previous prime (1223150290939) and next prime (1223150290949).
It is a tau number, because it is divible by the number of its divisors (192).
It is a super-2 number, since 2×12231502909442 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1223150290896 and 1223150290905.
It is not an unprimeable number, because it can be changed into a prime (1223150290949) 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 15 ways as a sum of consecutive naturals, for example, 481743627 + ... + 481746165.
It is an arithmetic number, because the mean of its divisors is an integer number (17201149875).
Almost surely, 21223150290944 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1223150290944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651310388000).
1223150290944 is an abundant number, since it is smaller than the sum of its proper divisors (2079470485056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223150290944 is an equidigital number, since it uses as much as digits as its factorization.
1223150290944 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3534 (or 3514 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 42.
The spelling of 1223150290944 in words is "one trillion, two hundred twenty-three billion, one hundred fifty million, two hundred ninety thousand, nine hundred forty-four".
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