Base | Representation |
---|---|
bin | 1101101111110101110001… |
… | …11000011100100001110101 |
3 | 10222001001201001120001010210 |
4 | 12313322320320130201311 |
5 | 12430301223344241114 |
6 | 144143544524340033 |
7 | 6240060246022542 |
oct | 667727070344165 |
9 | 128031631501123 |
10 | 30231081633909 |
11 | 96a5a25506902 |
12 | 3482ba00a4619 |
13 | 13b3a17c43680 |
14 | 7672993d3bc9 |
15 | 3765a6cd1259 |
hex | 1b7eb8e1c875 |
30231081633909 has 16 divisors (see below), whose sum is σ = 44809014301184. Its totient is φ = 18003621816000.
The previous prime is 30231081633899. The next prime is 30231081633911. The reversal of 30231081633909 is 90933618013203.
It is not a de Polignac number, because 30231081633909 - 227 = 30230947416181 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231081633919) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12502513942 + ... + 12502516359.
It is an arithmetic number, because the mean of its divisors is an integer number (2800563393824).
Almost surely, 230231081633909 is an apocalyptic number.
30231081633909 is a gapful number since it is divisible by the number (39) formed by its first and last digit.
It is an amenable number.
30231081633909 is a deficient number, since it is larger than the sum of its proper divisors (14577932667275).
30231081633909 is a wasteful number, since it uses less digits than its factorization.
30231081633909 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25005030348.
The product of its (nonzero) digits is 629856, while the sum is 48.
The spelling of 30231081633909 in words is "thirty trillion, two hundred thirty-one billion, eighty-one million, six hundred thirty-three thousand, nine hundred nine".
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