Base | Representation |
---|---|
bin | 10010010111010… |
… | …100011010101110 |
3 | 210110202020121221 |
4 | 102113110122232 |
5 | 1112333242310 |
6 | 50323413554 |
7 | 10430554660 |
oct | 2227243256 |
9 | 713666557 |
10 | 308102830 |
11 | 148a09242 |
12 | 872242ba |
13 | 4baa6c89 |
14 | 2ccc2530 |
15 | 1c0aeada |
hex | 125d46ae |
308102830 has 32 divisors (see below), whose sum is σ = 638668800. Its totient is φ = 104825760.
The previous prime is 308102827. The next prime is 308102843. The reversal of 308102830 is 38201803.
It is a junction number, because it is equal to n+sod(n) for n = 308102795 and 308102804.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7630 + ... + 25969.
It is an arithmetic number, because the mean of its divisors is an integer number (19958400).
Almost surely, 2308102830 is an apocalyptic number.
308102830 is an abundant number, since it is smaller than the sum of its proper divisors (330565970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
308102830 is a wasteful number, since it uses less digits than its factorization.
308102830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33744.
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 308102830 is about 17552.8581718192. The cubic root of 308102830 is about 675.4064894995.
The spelling of 308102830 in words is "three hundred eight million, one hundred two thousand, eight hundred thirty".
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