Base | Representation |
---|---|
bin | 11100001111011001… |
… | …000111110101110111 |
3 | 2220021021002202200210 |
4 | 130033121013311313 |
5 | 444100142440111 |
6 | 21532531240503 |
7 | 2122301242431 |
oct | 341731076567 |
9 | 86237082623 |
10 | 30323015031 |
11 | 11950608001 |
12 | 5a63149133 |
13 | 2b2329075a |
14 | 16792cd651 |
15 | bc71820a6 |
hex | 70f647d77 |
30323015031 has 8 divisors (see below), whose sum is σ = 40642366464. Its totient is φ = 20109503480.
The previous prime is 30323014987. The next prime is 30323015069. The reversal of 30323015031 is 13051032303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30323015031 is a prime.
It is a super-2 number, since 2×303230150312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30323014989 and 30323015007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30323014031) 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, 26459301 + ... + 26460446.
It is an arithmetic number, because the mean of its divisors is an integer number (5080295808).
Almost surely, 230323015031 is an apocalyptic number.
30323015031 is a deficient number, since it is larger than the sum of its proper divisors (10319351433).
30323015031 is a wasteful number, since it uses less digits than its factorization.
30323015031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52919941.
The product of its (nonzero) digits is 810, while the sum is 21.
Adding to 30323015031 its reverse (13051032303), we get a palindrome (43374047334).
The spelling of 30323015031 in words is "thirty billion, three hundred twenty-three million, fifteen thousand, thirty-one".
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