Base | Representation |
---|---|
bin | 11100000011011010… |
… | …011011110000000011 |
3 | 2212202020220202222200 |
4 | 130003122123300003 |
5 | 443142220012011 |
6 | 21500551404243 |
7 | 2114311022442 |
oct | 340332336003 |
9 | 85666822880 |
10 | 30122032131 |
11 | 11858113634 |
12 | 5a07983683 |
13 | 2ac0750c69 |
14 | 165a732d59 |
15 | bb46d1856 |
hex | 70369bc03 |
30122032131 has 24 divisors (see below), whose sum is σ = 46129706064. Its totient is φ = 18875189760.
The previous prime is 30122032117. The next prime is 30122032139. The reversal of 30122032131 is 13123022103.
It is not a de Polignac number, because 30122032131 - 29 = 30122031619 is a prime.
It is a super-2 number, since 2×301220321312 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30122032139) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12921 + ... + 245786.
It is an arithmetic number, because the mean of its divisors is an integer number (1922071086).
Almost surely, 230122032131 is an apocalyptic number.
30122032131 is a deficient number, since it is larger than the sum of its proper divisors (16007673933).
30122032131 is a wasteful number, since it uses less digits than its factorization.
30122032131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 259491 (or 259488 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30122032131 its reverse (13123022103), we get a palindrome (43245054234).
The spelling of 30122032131 in words is "thirty billion, one hundred twenty-two million, thirty-two thousand, one hundred thirty-one".
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