Base | Representation |
---|---|
bin | 1010110100101000… |
… | …1010000111001110 |
3 | 21111110111110010121 |
4 | 2231022022013032 |
5 | 21422202334410 |
6 | 1200134455154 |
7 | 131664060124 |
oct | 25512120716 |
9 | 7443443117 |
10 | 2905121230 |
11 | 1260957640 |
12 | 690b044ba |
13 | 373b44a5b |
14 | 1d7b89914 |
15 | 1200a19da |
hex | ad28a1ce |
2905121230 has 64 divisors (see below), whose sum is σ = 5983828992. Its totient is φ = 1005920640.
The previous prime is 2905121221. The next prime is 2905121239. The reversal of 2905121230 is 321215092.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (2905121221) and next prime (2905121239).
It is a junction number, because it is equal to n+sod(n) for n = 2905121195 and 2905121204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2905121239) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183697 + ... + 198883.
It is an arithmetic number, because the mean of its divisors is an integer number (93497328).
Almost surely, 22905121230 is an apocalyptic number.
2905121230 is an abundant number, since it is smaller than the sum of its proper divisors (3078707762).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2905121230 is a wasteful number, since it uses less digits than its factorization.
2905121230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15289.
The product of its (nonzero) digits is 1080, while the sum is 25.
The square root of 2905121230 is about 53899.1765243218. The cubic root of 2905121230 is about 1426.8820896957.
The spelling of 2905121230 in words is "two billion, nine hundred five million, one hundred twenty-one thousand, two hundred thirty".
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