Base | Representation |
---|---|
bin | 11100010101010100… |
… | …010101011001100100 |
3 | 2220112012011012222121 |
4 | 130111110111121210 |
5 | 444301120020030 |
6 | 21550442035324 |
7 | 2124616221124 |
oct | 342524253144 |
9 | 86465135877 |
10 | 30422423140 |
11 | 119a173486a |
12 | 5a904a8b44 |
13 | 2b3aa57a15 |
14 | 16885a8c84 |
15 | bd0c6b47a |
hex | 715515664 |
30422423140 has 12 divisors (see below), whose sum is σ = 63887088636. Its totient is φ = 12168969248.
The previous prime is 30422423111. The next prime is 30422423147. The reversal of 30422423140 is 4132422403.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 10085381476 + 20337041664 = 100426^2 + 142608^2 .
It is not an unprimeable number, because it can be changed into a prime (30422423147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760560559 + ... + 760560598.
It is an arithmetic number, because the mean of its divisors is an integer number (5323924053).
Almost surely, 230422423140 is an apocalyptic number.
It is an amenable number.
30422423140 is an abundant number, since it is smaller than the sum of its proper divisors (33464665496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30422423140 is a wasteful number, since it uses less digits than its factorization.
30422423140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1521121166 (or 1521121164 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 25.
Adding to 30422423140 its reverse (4132422403), we get a palindrome (34554845543).
The spelling of 30422423140 in words is "thirty billion, four hundred twenty-two million, four hundred twenty-three thousand, one hundred forty".
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