Base | Representation |
---|---|
bin | 10001110010110011111… |
… | …110100011101001100000 |
3 | 11022220020100112212220000 |
4 | 101302303332203221200 |
5 | 130013233244421142 |
6 | 2333424142220000 |
7 | 154225611325041 |
oct | 21626376435140 |
9 | 4286210485800 |
10 | 1222790232672 |
11 | 431645232228 |
12 | 178b99b84600 |
13 | 8b40207cb98 |
14 | 4327d2108c8 |
15 | 21c1a8b214c |
hex | 11cb3fa3a60 |
1222790232672 has 480 divisors, whose sum is σ = 3894996121632. Its totient is φ = 374887858176.
The previous prime is 1222790232661. The next prime is 1222790232683. The reversal of 1222790232672 is 2762320972221.
1222790232672 is a `hidden beast` number, since 12 + 227 + 90 + 2 + 326 + 7 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (1222790232661) and next prime (1222790232683).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 684268963 + ... + 684270749.
Almost surely, 21222790232672 is an apocalyptic number.
1222790232672 is a gapful number since it is divisible by the number (12) 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 1222790232672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947498060816).
1222790232672 is an abundant number, since it is smaller than the sum of its proper divisors (2672205888960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222790232672 is a wasteful number, since it uses less digits than its factorization.
1222790232672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2172 (or 2155 counting only the distinct ones).
The product of its (nonzero) digits is 508032, while the sum is 45.
The spelling of 1222790232672 in words is "one trillion, two hundred twenty-two billion, seven hundred ninety million, two hundred thirty-two thousand, six hundred seventy-two".
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