Base | Representation |
---|---|
bin | 11100001000001011… |
… | …111111001010111011 |
3 | 2212221211122020011022 |
4 | 130020023333022323 |
5 | 443323221144011 |
6 | 21512532253055 |
7 | 2116302610304 |
oct | 341013771273 |
9 | 85854566138 |
10 | 30202131131 |
11 | 11899352157 |
12 | 5a2a77118b |
13 | 2b04217413 |
14 | 16672237ab |
15 | bbb7548db |
hex | 7082ff2bb |
30202131131 has 8 divisors (see below), whose sum is σ = 31958169600. Its totient is φ = 28462737960.
The previous prime is 30202131119. The next prime is 30202131139. The reversal of 30202131131 is 13113120203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30202131131 - 26 = 30202131067 is a prime.
It is a super-2 number, since 2×302021311312 (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 (30202131139) 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, 4157591 + ... + 4164848.
It is an arithmetic number, because the mean of its divisors is an integer number (3994771200).
Almost surely, 230202131131 is an apocalyptic number.
30202131131 is a deficient number, since it is larger than the sum of its proper divisors (1756038469).
30202131131 is a wasteful number, since it uses less digits than its factorization.
30202131131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8322649.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 30202131131 its reverse (13113120203), we get a palindrome (43315251334).
The spelling of 30202131131 in words is "thirty billion, two hundred two million, one hundred thirty-one thousand, one hundred thirty-one".
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