Base | Representation |
---|---|
bin | 1001010101010001… |
… | …0111101110001110 |
3 | 20110120212120012200 |
4 | 2111110113232032 |
5 | 20112304121410 |
6 | 1052325542330 |
7 | 116036245260 |
oct | 22524275616 |
9 | 6416776180 |
10 | 2505145230 |
11 | 10760a8765 |
12 | 59ab749a6 |
13 | 30c011373 |
14 | 19a9cdb30 |
15 | e9de53c0 |
hex | 95517b8e |
2505145230 has 96 divisors (see below), whose sum is σ = 7453914624. Its totient is φ = 571831488.
The previous prime is 2505145187. The next prime is 2505145241. The reversal of 2505145230 is 325415052.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 2505145194 and 2505145203.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556569 + ... + 561051.
It is an arithmetic number, because the mean of its divisors is an integer number (77644944).
Almost surely, 22505145230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2505145230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3726957312).
2505145230 is an abundant number, since it is smaller than the sum of its proper divisors (4948769394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2505145230 is a wasteful number, since it uses less digits than its factorization.
2505145230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5390 (or 5387 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 27.
The square root of 2505145230 is about 50051.4258538156. The cubic root of 2505145230 is about 1358.1392571362.
The spelling of 2505145230 in words is "two billion, five hundred five million, one hundred forty-five thousand, two hundred thirty".
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