Base | Representation |
---|---|
bin | 11100101101110011… |
… | …110101010010101101 |
3 | 2221120211100121220220 |
4 | 130231303311102231 |
5 | 1001121313132141 |
6 | 22055321201553 |
7 | 2141036003232 |
oct | 345563652255 |
9 | 87524317826 |
10 | 30833333421 |
11 | 12092681840 |
12 | 5b860302b9 |
13 | 2ba4c192b7 |
14 | 16c6dad789 |
15 | c06d87766 |
hex | 72dcf54ad |
30833333421 has 32 divisors (see below), whose sum is σ = 45133037568. Its totient is φ = 18568683840.
The previous prime is 30833333393. The next prime is 30833333423. The reversal of 30833333421 is 12433333803.
It is a happy number.
It is not a de Polignac number, because 30833333421 - 29 = 30833332909 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30833333423) 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, 3496600 + ... + 3505406.
It is an arithmetic number, because the mean of its divisors is an integer number (1410407424).
Almost surely, 230833333421 is an apocalyptic number.
It is an amenable number.
30833333421 is a deficient number, since it is larger than the sum of its proper divisors (14299704147).
30833333421 is a wasteful number, since it uses less digits than its factorization.
30833333421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9481.
The product of its (nonzero) digits is 46656, while the sum is 33.
The spelling of 30833333421 in words is "thirty billion, eight hundred thirty-three million, three hundred thirty-three thousand, four hundred twenty-one".
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