Base | Representation |
---|---|
bin | 11100001011100001… |
… | …000000000000000001 |
3 | 2220002201201012100001 |
4 | 130023201000000001 |
5 | 443432020034301 |
6 | 21522245200001 |
7 | 2120551340323 |
oct | 341341000001 |
9 | 86081635301 |
10 | 30257971201 |
11 | 11917921677 |
12 | 5a45400001 |
13 | 2b12968a93 |
14 | 16707db613 |
15 | bc15d4c01 |
hex | 70b840001 |
30257971201 has 4 divisors (see below), whose sum is σ = 30828876372. Its totient is φ = 29687066032.
The previous prime is 30257971199. The next prime is 30257971217. The reversal of 30257971201 is 10217975203.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 11911539600 + 18346431601 = 109140^2 + 135449^2 .
It is a cyclic number.
It is not a de Polignac number, because 30257971201 - 21 = 30257971199 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30257971801) 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, 285452506 + ... + 285452611.
It is an arithmetic number, because the mean of its divisors is an integer number (7707219093).
It is a Proth number, since it is equal to 115425 ⋅ 218 + 1 and 115425 < 218.
Almost surely, 230257971201 is an apocalyptic number.
It is an amenable number.
30257971201 is a deficient number, since it is larger than the sum of its proper divisors (570905171).
30257971201 is an equidigital number, since it uses as much as digits as its factorization.
30257971201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 570905170.
The product of its (nonzero) digits is 26460, while the sum is 37.
The spelling of 30257971201 in words is "thirty billion, two hundred fifty-seven million, nine hundred seventy-one thousand, two hundred one".
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