Base | Representation |
---|---|
bin | 111001111001… |
… | …1011000110010 |
3 | 2010010022000220 |
4 | 1303303120302 |
5 | 30232411132 |
6 | 3002353510 |
7 | 516013332 |
oct | 163633062 |
9 | 63108026 |
10 | 30357042 |
11 | 16154771 |
12 | a1bb896 |
13 | 639b661 |
14 | 40630c2 |
15 | 29e9a2c |
hex | 1cf3632 |
30357042 has 8 divisors (see below), whose sum is σ = 60714096. Its totient is φ = 10119012.
The previous prime is 30357013. The next prime is 30357043. The reversal of 30357042 is 24075303.
It is a sphenic number, since it is the product of 3 distinct primes.
30357042 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (30357043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529748 + ... + 2529759.
It is an arithmetic number, because the mean of its divisors is an integer number (7589262).
Almost surely, 230357042 is an apocalyptic number.
30357042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30357042 is a wasteful number, since it uses less digits than its factorization.
30357042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5059512.
The product of its (nonzero) digits is 2520, while the sum is 24.
The square root of 30357042 is about 5509.7224975492. The cubic root of 30357042 is about 311.9510730313.
The spelling of 30357042 in words is "thirty million, three hundred fifty-seven thousand, forty-two".
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