Base | Representation |
---|---|
bin | 11011111101111110… |
… | …011110000110110110 |
3 | 2212111220021111112020 |
4 | 123331332132012312 |
5 | 443000342100140 |
6 | 21443532334010 |
7 | 2112122502312 |
oct | 337576360666 |
9 | 85456244466 |
10 | 30030815670 |
11 | 11810681329 |
12 | 59a1314306 |
13 | 2aa789441b |
14 | 164c58ab42 |
15 | bab6b46d0 |
hex | 6fdf9e1b6 |
30030815670 has 32 divisors (see below), whose sum is σ = 72103350528. Its totient is φ = 8004951648.
The previous prime is 30030815621. The next prime is 30030815671. The reversal of 30030815670 is 7651803003.
It is a happy number.
It is a super-3 number, since 3×300308156703 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030815671) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128874 + ... + 276893.
It is an arithmetic number, because the mean of its divisors is an integer number (2253229704).
Almost surely, 230030815670 is an apocalyptic number.
30030815670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30030815670 is an abundant number, since it is smaller than the sum of its proper divisors (42072534858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030815670 is a wasteful number, since it uses less digits than its factorization.
30030815670 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408244.
The product of its (nonzero) digits is 15120, while the sum is 33.
The spelling of 30030815670 in words is "thirty billion, thirty million, eight hundred fifteen thousand, six hundred seventy".
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