Base | Representation |
---|---|
bin | 11100001011010110… |
… | …001001001010010110 |
3 | 2220002112100121021110 |
4 | 130023112021022112 |
5 | 443430303001032 |
6 | 21522104155450 |
7 | 2120515214634 |
oct | 341326111226 |
9 | 86075317243 |
10 | 30255125142 |
11 | 11916258360 |
12 | 5a44468b86 |
13 | 2b121b0518 |
14 | 167029a354 |
15 | bc12217cc |
hex | 70b589296 |
30255125142 has 16 divisors (see below), whose sum is σ = 66011182272. Its totient is φ = 9168219720.
The previous prime is 30255125113. The next prime is 30255125167. The reversal of 30255125142 is 24152155203.
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, 229205428 + ... + 229205559.
It is an arithmetic number, because the mean of its divisors is an integer number (4125698892).
Almost surely, 230255125142 is an apocalyptic number.
30255125142 is an abundant number, since it is smaller than the sum of its proper divisors (35756057130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30255125142 is a wasteful number, since it uses less digits than its factorization.
30255125142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 458411003.
The product of its (nonzero) digits is 12000, while the sum is 30.
The spelling of 30255125142 in words is "thirty billion, two hundred fifty-five million, one hundred twenty-five thousand, one hundred forty-two".
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