Base | Representation |
---|---|
bin | 11011111101111100… |
… | …101000010100101111 |
3 | 2212111212100222202010 |
4 | 123331330220110233 |
5 | 443000231130411 |
6 | 21443514132303 |
7 | 2112115422633 |
oct | 337574502457 |
9 | 85455328663 |
10 | 30030333231 |
11 | 11810381918 |
12 | 59a1121093 |
13 | 2aa7755962 |
14 | 164c4a2dc3 |
15 | bab61b7a6 |
hex | 6fdf2852f |
30030333231 has 4 divisors (see below), whose sum is σ = 40040444312. Its totient is φ = 20020222152.
The previous prime is 30030333181. The next prime is 30030333251. The reversal of 30030333231 is 13233303003.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 30030333231 - 26 = 30030333167 is a prime.
It is a super-2 number, since 2×300303332312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30030333198 and 30030333207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030333251) 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, 5005055536 + ... + 5005055541.
It is an arithmetic number, because the mean of its divisors is an integer number (10010111078).
Almost surely, 230030333231 is an apocalyptic number.
30030333231 is a deficient number, since it is larger than the sum of its proper divisors (10010111081).
30030333231 is a wasteful number, since it uses less digits than its factorization.
30030333231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10010111080.
The product of its (nonzero) digits is 1458, while the sum is 21.
Adding to 30030333231 its reverse (13233303003), we get a palindrome (43263636234).
The spelling of 30030333231 in words is "thirty billion, thirty million, three hundred thirty-three thousand, two hundred thirty-one".
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