Base | Representation |
---|---|
bin | 11100000100100111… |
… | …110000101110011011 |
3 | 2212210200001122120110 |
4 | 130010213300232123 |
5 | 443212412200011 |
6 | 21502554055403 |
7 | 2114645230533 |
oct | 340447605633 |
9 | 85720048513 |
10 | 30142303131 |
11 | 118685a9526 |
12 | 5a1271a563 |
13 | 2ac49ca835 |
14 | 165d2cc4c3 |
15 | bb6387ba6 |
hex | 7049f0b9b |
30142303131 has 8 divisors (see below), whose sum is σ = 40215196480. Its totient is φ = 20082139272.
The previous prime is 30142303049. The next prime is 30142303159. The reversal of 30142303131 is 13130324103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30142303131 - 27 = 30142303003 is a prime.
It is a super-2 number, since 2×301423031312 (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 = 30142303098 and 30142303107.
It is not an unprimeable number, because it can be changed into a prime (30142301131) 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, 3176845 + ... + 3186318.
It is an arithmetic number, because the mean of its divisors is an integer number (5026899560).
Almost surely, 230142303131 is an apocalyptic number.
30142303131 is a deficient number, since it is larger than the sum of its proper divisors (10072893349).
30142303131 is a wasteful number, since it uses less digits than its factorization.
30142303131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6364745.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 30142303131 its reverse (13130324103), we get a palindrome (43272627234).
The spelling of 30142303131 in words is "thirty billion, one hundred forty-two million, three hundred three thousand, one hundred thirty-one".
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