Base | Representation |
---|---|
bin | 1000000001100100… |
… | …0001111001111111 |
3 | 12120010012211022111 |
4 | 2000121001321333 |
5 | 13402413420210 |
6 | 553424354451 |
7 | 104244036511 |
oct | 20031017177 |
9 | 5503184274 |
10 | 2154045055 |
11 | a059a1a28 |
12 | 501475a27 |
13 | 284361496 |
14 | 166117bb1 |
15 | c919088a |
hex | 80641e7f |
2154045055 has 8 divisors (see below), whose sum is σ = 2585599344. Its totient is φ = 1722739200.
The previous prime is 2154045037. The next prime is 2154045071. The reversal of 2154045055 is 5505404512.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2154045055 - 225 = 2120490623 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42466 + ... + 78175.
It is an arithmetic number, because the mean of its divisors is an integer number (323199918).
Almost surely, 22154045055 is an apocalyptic number.
2154045055 is a deficient number, since it is larger than the sum of its proper divisors (431554289).
2154045055 is a wasteful number, since it uses less digits than its factorization.
2154045055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124217.
The product of its (nonzero) digits is 20000, while the sum is 31.
The square root of 2154045055 is about 46411.6909301956. The cubic root of 2154045055 is about 1291.4718002990.
Adding to 2154045055 its reverse (5505404512), we get a palindrome (7659449567).
The spelling of 2154045055 in words is "two billion, one hundred fifty-four million, forty-five thousand, fifty-five".
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