Base | Representation |
---|---|
bin | 11100001000001011… |
… | …100010010111001011 |
3 | 2212221211102020021221 |
4 | 130020023202113023 |
5 | 443323203410011 |
6 | 21512525542511 |
7 | 2116301606263 |
oct | 341013422713 |
9 | 85854366257 |
10 | 30202013131 |
11 | 11899281534 |
12 | 5a2a714a37 |
13 | 2b041a57b4 |
14 | 16671d27a3 |
15 | bbb72e971 |
hex | 7082e25cb |
30202013131 has 8 divisors (see below), whose sum is σ = 30449073200. Its totient is φ = 29955834720.
The previous prime is 30202013113. The next prime is 30202013143. The reversal of 30202013131 is 13131020203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30202013131 - 221 = 30199915979 is a prime.
It is a super-2 number, since 2×302020131312 (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 (30202011131) 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, 151536 + ... + 288733.
It is an arithmetic number, because the mean of its divisors is an integer number (3806134150).
Almost surely, 230202013131 is an apocalyptic number.
30202013131 is a deficient number, since it is larger than the sum of its proper divisors (247060069).
30202013131 is a wasteful number, since it uses less digits than its factorization.
30202013131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 440829.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30202013131 its reverse (13131020203), we get a palindrome (43333033334).
The spelling of 30202013131 in words is "thirty billion, two hundred two million, thirteen thousand, one hundred thirty-one".
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