Base | Representation |
---|---|
bin | 11100000100110100… |
… | …000000111011110111 |
3 | 2212210220002211210000 |
4 | 130010310000323313 |
5 | 443214222442010 |
6 | 21503151002343 |
7 | 2115014436402 |
oct | 340464007367 |
9 | 85726084700 |
10 | 30145515255 |
11 | 1186a3a2879 |
12 | 5a138093b3 |
13 | 2ac55838bb |
14 | 165d8c6d39 |
15 | bb67be7c0 |
hex | 704d00ef7 |
30145515255 has 40 divisors (see below), whose sum is σ = 54075488544. Its totient is φ = 16066641600.
The previous prime is 30145515241. The next prime is 30145515277. The reversal of 30145515255 is 55251554103.
30145515255 is a `hidden beast` number, since 3 + 0 + 1 + 4 + 551 + 52 + 55 = 666.
It is not a de Polignac number, because 30145515255 - 28 = 30145514999 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 587325 + ... + 636585.
Almost surely, 230145515255 is an apocalyptic number.
30145515255 is a deficient number, since it is larger than the sum of its proper divisors (23929973289).
30145515255 is a wasteful number, since it uses less digits than its factorization.
30145515255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50789 (or 50780 counting only the distinct ones).
The product of its (nonzero) digits is 75000, while the sum is 36.
The spelling of 30145515255 in words is "thirty billion, one hundred forty-five million, five hundred fifteen thousand, two hundred fifty-five".
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