Base | Representation |
---|---|
bin | 11100000101011100… |
… | …100000101100110101 |
3 | 2212211122002012000101 |
4 | 130011130200230311 |
5 | 443224432144000 |
6 | 21504210314101 |
7 | 2115203612431 |
oct | 340534405465 |
9 | 85748065011 |
10 | 30156131125 |
11 | 1187539371a |
12 | 5a17288931 |
13 | 2ac782c893 |
14 | 166108b9c1 |
15 | bb76b9e6a |
hex | 705720b35 |
30156131125 has 16 divisors (see below), whose sum is σ = 38510087616. Its totient is φ = 23563856400.
The previous prime is 30156131101. The next prime is 30156131147. The reversal of 30156131125 is 52113165103.
It is a de Polignac number, because none of the positive numbers 2k-30156131125 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30156131093 and 30156131102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799847 + ... + 2810596.
It is an arithmetic number, because the mean of its divisors is an integer number (2406880476).
Almost surely, 230156131125 is an apocalyptic number.
It is an amenable number.
30156131125 is a deficient number, since it is larger than the sum of its proper divisors (8353956491).
30156131125 is an equidigital number, since it uses as much as digits as its factorization.
30156131125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5610501 (or 5610491 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 28.
Adding to 30156131125 its reverse (52113165103), we get a palindrome (82269296228).
The spelling of 30156131125 in words is "thirty billion, one hundred fifty-six million, one hundred thirty-one thousand, one hundred twenty-five".
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