Base | Representation |
---|---|
bin | 101011111110001111… |
… | …011010000000110010 |
3 | 11111212111120211122221 |
4 | 223332033122000302 |
5 | 1233144032441110 |
6 | 33405035551254 |
7 | 3261014636200 |
oct | 537617320062 |
9 | 144774524587 |
10 | 47215124530 |
11 | 19029785982 |
12 | 91982bb52a |
13 | 45b5b09a12 |
14 | 23dc926070 |
15 | 13651467da |
hex | afe3da032 |
47215124530 has 24 divisors (see below), whose sum is σ = 98862690348. Its totient is φ = 16188042528.
The previous prime is 47215124503. The next prime is 47215124533. The reversal of 47215124530 is 3542151274.
It can be written as a sum of positive squares in 2 ways, for example, as 47207556529 + 7568001 = 217273^2 + 2751^2 .
It is not an unprimeable number, because it can be changed into a prime (47215124533) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48178209 + ... + 48179188.
Almost surely, 247215124530 is an apocalyptic number.
47215124530 is an abundant number, since it is smaller than the sum of its proper divisors (51647565818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47215124530 is a wasteful number, since it uses less digits than its factorization.
47215124530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96357418 (or 96357411 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 34.
The spelling of 47215124530 in words is "forty-seven billion, two hundred fifteen million, one hundred twenty-four thousand, five hundred thirty".
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