Base | Representation |
---|---|
bin | 11100001011000011… |
… | …001011001100010101 |
3 | 2220002011222222101212 |
4 | 130023003023030111 |
5 | 443423014341400 |
6 | 21521405431205 |
7 | 2120425025042 |
oct | 341303131425 |
9 | 86064888355 |
10 | 30250152725 |
11 | 11913471521 |
12 | 5a4286b505 |
13 | 2b1115c170 |
14 | 166d7641c9 |
15 | bc0a8d335 |
hex | 70b0cb315 |
30250152725 has 24 divisors (see below), whose sum is σ = 40456988712. Its totient is φ = 22304620800.
The previous prime is 30250152701. The next prime is 30250152761. The reversal of 30250152725 is 52725105203.
It can be written as a sum of positive squares in 12 ways, for example, as 10482073924 + 19768078801 = 102382^2 + 140599^2 .
It is a de Polignac number, because none of the positive numbers 2k-30250152725 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30250152691 and 30250152700.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144419 + ... + 285231.
It is an arithmetic number, because the mean of its divisors is an integer number (1685707863).
Almost surely, 230250152725 is an apocalyptic number.
It is an amenable number.
30250152725 is a deficient number, since it is larger than the sum of its proper divisors (10206835987).
30250152725 is a wasteful number, since it uses less digits than its factorization.
30250152725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141497 (or 141492 counting only the distinct ones).
The product of its (nonzero) digits is 21000, while the sum is 32.
Adding to 30250152725 its reverse (52725105203), we get a palindrome (82975257928).
The spelling of 30250152725 in words is "thirty billion, two hundred fifty million, one hundred fifty-two thousand, seven hundred twenty-five".
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