Base | Representation |
---|---|
bin | 11100011101001000… |
… | …100001001000101101 |
3 | 2220212022212210220121 |
4 | 130131020201020231 |
5 | 1000033201340323 |
6 | 22011444244541 |
7 | 2131100555314 |
oct | 343510411055 |
9 | 86768783817 |
10 | 30553543213 |
11 | 11a59751266 |
12 | 5b083a0751 |
13 | 2b5bc7626b |
14 | 169bb7b27b |
15 | bdc51ba5d |
hex | 71d22122d |
30553543213 has 4 divisors (see below), whose sum is σ = 30758600700. Its totient is φ = 30348485728.
The previous prime is 30553543193. The next prime is 30553543217. The reversal of 30553543213 is 31234535503.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31234535503 = 172223 ⋅181361.
It can be written as a sum of positive squares in 2 ways, for example, as 8983627524 + 21569915689 = 94782^2 + 146867^2 .
It is a cyclic number.
It is not a de Polignac number, because 30553543213 - 233 = 21963608621 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30553543217) 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, 102528520 + ... + 102528817.
It is an arithmetic number, because the mean of its divisors is an integer number (7689650175).
Almost surely, 230553543213 is an apocalyptic number.
It is an amenable number.
30553543213 is a deficient number, since it is larger than the sum of its proper divisors (205057487).
30553543213 is a wasteful number, since it uses less digits than its factorization.
30553543213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 205057486.
The product of its (nonzero) digits is 81000, while the sum is 34.
The spelling of 30553543213 in words is "thirty billion, five hundred fifty-three million, five hundred forty-three thousand, two hundred thirteen".
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