Base | Representation |
---|---|
bin | 11100000100100000… |
… | …100101100100010100 |
3 | 2212210112112002201111 |
4 | 130010200211210110 |
5 | 443211422004140 |
6 | 21502445504404 |
7 | 2114623235443 |
oct | 340440454424 |
9 | 85715462644 |
10 | 30140422420 |
11 | 11867534519 |
12 | 5a11b72104 |
13 | 2ac44bc7a4 |
14 | 165cd5cd5a |
15 | bb61157ea |
hex | 704825914 |
30140422420 has 24 divisors (see below), whose sum is σ = 63530195400. Its totient is φ = 12011348352.
The previous prime is 30140422409. The next prime is 30140422471. The reversal of 30140422420 is 2422404103.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 2980723216 + 27159699204 = 54596^2 + 164802^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30140422391 and 30140422400.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2795775 + ... + 2806534.
It is an arithmetic number, because the mean of its divisors is an integer number (2647091475).
Almost surely, 230140422420 is an apocalyptic number.
It is an amenable number.
30140422420 is an abundant number, since it is smaller than the sum of its proper divisors (33389772980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30140422420 is a wasteful number, since it uses less digits than its factorization.
30140422420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5602587 (or 5602585 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 22.
Adding to 30140422420 its reverse (2422404103), we get a palindrome (32562826523).
The spelling of 30140422420 in words is "thirty billion, one hundred forty million, four hundred twenty-two thousand, four hundred twenty".
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