Base | Representation |
---|---|
bin | 11100011000011011… |
… | …111010110011110111 |
3 | 2220122211121100101100 |
4 | 130120123322303313 |
5 | 444403013234111 |
6 | 21555551301143 |
7 | 2126123020215 |
oct | 343033726367 |
9 | 86584540340 |
10 | 30474743031 |
11 | 11a1921a547 |
12 | 5aa5b1a7b3 |
13 | 2b48846035 |
14 | 1691507cb5 |
15 | bd5653756 |
hex | 7186facf7 |
30474743031 has 24 divisors (see below), whose sum is σ = 46617287184. Its totient is φ = 19117774080.
The previous prime is 30474742999. The next prime is 30474743053. The reversal of 30474743031 is 13034747403.
30474743031 is a `hidden beast` number, since 304 + 7 + 47 + 4 + 303 + 1 = 666.
It is not a de Polignac number, because 30474743031 - 25 = 30474742999 is a prime.
It is a super-2 number, since 2×304747430312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30474743731) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950736 + ... + 982266.
It is an arithmetic number, because the mean of its divisors is an integer number (1942386966).
Almost surely, 230474743031 is an apocalyptic number.
30474743031 is a deficient number, since it is larger than the sum of its proper divisors (16142544153).
30474743031 is a wasteful number, since it uses less digits than its factorization.
30474743031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37871 (or 37868 counting only the distinct ones).
The product of its (nonzero) digits is 84672, while the sum is 36.
The spelling of 30474743031 in words is "thirty billion, four hundred seventy-four million, seven hundred forty-three thousand, thirty-one".
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