Base | Representation |
---|---|
bin | 11100001001111010… |
… | …111000000110000011 |
3 | 2220000212100002022221 |
4 | 130021322320012003 |
5 | 443403141401011 |
6 | 21515451311511 |
7 | 2120104650466 |
oct | 341172700603 |
9 | 86025302287 |
10 | 30231200131 |
11 | 119037a7120 |
12 | 5a3844b597 |
13 | 2b0a254702 |
14 | 166b02d2dd |
15 | bbe097971 |
hex | 709eb8183 |
30231200131 has 16 divisors (see below), whose sum is σ = 33883411968. Its totient is φ = 26730194400.
The previous prime is 30231200119. The next prime is 30231200149. The reversal of 30231200131 is 13100213203.
It is a cyclic number.
It is not a de Polignac number, because 30231200131 - 211 = 30231198083 is a prime.
It is a super-2 number, since 2×302312001312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30231200171) 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, 1218076 + ... + 1242646.
It is an arithmetic number, because the mean of its divisors is an integer number (2117713248).
Almost surely, 230231200131 is an apocalyptic number.
30231200131 is a deficient number, since it is larger than the sum of its proper divisors (3652211837).
30231200131 is a wasteful number, since it uses less digits than its factorization.
30231200131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27642.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30231200131 its reverse (13100213203), we get a palindrome (43331413334).
The spelling of 30231200131 in words is "thirty billion, two hundred thirty-one million, two hundred thousand, one hundred thirty-one".
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