Base | Representation |
---|---|
bin | 100100011101100… |
… | …1100101100100110 |
3 | 10011021012010101000 |
4 | 1020323030230212 |
5 | 10001202244204 |
6 | 321223214130 |
7 | 42214251261 |
oct | 11073145446 |
9 | 3137163330 |
10 | 1223478054 |
11 | 578692197 |
12 | 2a18a7346 |
13 | 166624a16 |
14 | b86c1cd8 |
15 | 72627039 |
hex | 48eccb26 |
1223478054 has 128 divisors (see below), whose sum is σ = 3000729600. Its totient is φ = 368232480.
The previous prime is 1223478041. The next prime is 1223478073. The reversal of 1223478054 is 4508743221.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1655217 + ... + 1655955.
It is an arithmetic number, because the mean of its divisors is an integer number (23443200).
Almost surely, 21223478054 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1223478054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500364800).
1223478054 is an abundant number, since it is smaller than the sum of its proper divisors (1777251546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223478054 is a wasteful number, since it uses less digits than its factorization.
1223478054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 847 (or 841 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 36.
The square root of 1223478054 is about 34978.2511569690. The cubic root of 1223478054 is about 1069.5441776983.
The spelling of 1223478054 in words is "one billion, two hundred twenty-three million, four hundred seventy-eight thousand, fifty-four".
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