Base | Representation |
---|---|
bin | 11100001001111100… |
… | …100010100101101011 |
3 | 2220000220011020200111 |
4 | 130021330202211223 |
5 | 443403244330311 |
6 | 21515504515151 |
7 | 2120111445301 |
oct | 341174424553 |
9 | 86026136614 |
10 | 30231636331 |
11 | 11903a74916 |
12 | 5a3861bab7 |
13 | 2b0a378110 |
14 | 166b104271 |
15 | bbe131d21 |
hex | 709f2296b |
30231636331 has 8 divisors (see below), whose sum is σ = 32561389280. Its totient is φ = 27902489472.
The previous prime is 30231636329. The next prime is 30231636343. The reversal of 30231636331 is 13363613203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30231636331 - 21 = 30231636329 is a prime.
It is a super-2 number, since 2×302316363312 (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 = 30231636293 and 30231636302.
It is not an unprimeable number, because it can be changed into a prime (30231636311) 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, 45150 + ... + 250003.
It is an arithmetic number, because the mean of its divisors is an integer number (4070173660).
Almost surely, 230231636331 is an apocalyptic number.
30231636331 is a deficient number, since it is larger than the sum of its proper divisors (2329752949).
30231636331 is a wasteful number, since it uses less digits than its factorization.
30231636331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 303045.
The product of its (nonzero) digits is 17496, while the sum is 31.
The spelling of 30231636331 in words is "thirty billion, two hundred thirty-one million, six hundred thirty-six thousand, three hundred thirty-one".
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