Base | Representation |
---|---|
bin | 11011111111110011… |
… | …110010110010110101 |
3 | 2212121001011001020220 |
4 | 123333303302302311 |
5 | 443031230240003 |
6 | 21450551444553 |
7 | 2112645065610 |
oct | 337763626265 |
9 | 85531131226 |
10 | 30061571253 |
11 | 11826a7846a |
12 | 59ab686759 |
13 | 2ab10722ac |
14 | 16526b5177 |
15 | bae23c353 |
hex | 6ffcf2cb5 |
30061571253 has 32 divisors (see below), whose sum is σ = 46807289856. Its totient is φ = 16803732288.
The previous prime is 30061571237. The next prime is 30061571261. The reversal of 30061571253 is 35217516003.
It is not a de Polignac number, because 30061571253 - 24 = 30061571237 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30061571653) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2177350 + ... + 2191112.
It is an arithmetic number, because the mean of its divisors is an integer number (1462727808).
Almost surely, 230061571253 is an apocalyptic number.
It is an amenable number.
30061571253 is a deficient number, since it is larger than the sum of its proper divisors (16745718603).
30061571253 is a wasteful number, since it uses less digits than its factorization.
30061571253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16033.
The product of its (nonzero) digits is 18900, while the sum is 33.
The spelling of 30061571253 in words is "thirty billion, sixty-one million, five hundred seventy-one thousand, two hundred fifty-three".
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