Base | Representation |
---|---|
bin | 10011000111010101… |
… | …110011010100101111 |
3 | 1221222100222221121210 |
4 | 103013111303110233 |
5 | 314013202003130 |
6 | 13232333525503 |
7 | 1324416151524 |
oct | 230725632457 |
9 | 57870887553 |
10 | 20524250415 |
11 | 878244a129 |
12 | 3b89643893 |
13 | 1c211a0996 |
14 | dc9b9114b |
15 | 801cc45b0 |
hex | 4c757352f |
20524250415 has 8 divisors (see below), whose sum is σ = 32838800688. Its totient is φ = 10946266880.
The previous prime is 20524250389. The next prime is 20524250431. The reversal of 20524250415 is 51405242502.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20524250415 - 27 = 20524250287 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684141666 + ... + 684141695.
It is an arithmetic number, because the mean of its divisors is an integer number (4104850086).
Almost surely, 220524250415 is an apocalyptic number.
20524250415 is a deficient number, since it is larger than the sum of its proper divisors (12314550273).
20524250415 is a wasteful number, since it uses less digits than its factorization.
20524250415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1368283369.
The product of its (nonzero) digits is 16000, while the sum is 30.
Adding to 20524250415 its reverse (51405242502), we get a palindrome (71929492917).
The spelling of 20524250415 in words is "twenty billion, five hundred twenty-four million, two hundred fifty thousand, four hundred fifteen".
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