Base | Representation |
---|---|
bin | 11100001111011101… |
… | …000000000000101011 |
3 | 2220021100000102001221 |
4 | 130033131000000223 |
5 | 444100423002111 |
6 | 21533005122511 |
7 | 2122313005123 |
oct | 341735000053 |
9 | 86240012057 |
10 | 30324031531 |
11 | 11951141792 |
12 | 5a63559437 |
13 | 2b23558331 |
14 | 16794b5c83 |
15 | bc72d3371 |
hex | 70f74002b |
30324031531 has 8 divisors (see below), whose sum is σ = 30826714464. Its totient is φ = 29821528320.
The previous prime is 30324031523. The next prime is 30324031541. The reversal of 30324031531 is 13513042303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30324031531 - 23 = 30324031523 is a prime.
It is a super-2 number, since 2×303240315312 (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 = 30324031496 and 30324031505.
It is not an unprimeable number, because it can be changed into a prime (30324031541) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319611 + ... + 403483.
It is an arithmetic number, because the mean of its divisors is an integer number (3853339308).
Almost surely, 230324031531 is an apocalyptic number.
30324031531 is a deficient number, since it is larger than the sum of its proper divisors (502682933).
30324031531 is an equidigital number, since it uses as much as digits as its factorization.
30324031531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89861.
The product of its (nonzero) digits is 3240, while the sum is 25.
Adding to 30324031531 its reverse (13513042303), we get a palindrome (43837073834).
The spelling of 30324031531 in words is "thirty billion, three hundred twenty-four million, thirty-one thousand, five hundred thirty-one".
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