Base | Representation |
---|---|
bin | 100000000111110… |
… | …001011101000111 |
3 | 1101120001101110121 |
4 | 200013301131013 |
5 | 2100430032422 |
6 | 125250402411 |
7 | 16232434525 |
oct | 4007613507 |
9 | 1346041417 |
10 | 538908487 |
11 | 257221a17 |
12 | 130590407 |
13 | 87858b80 |
14 | 51803315 |
15 | 324a18c7 |
hex | 201f1747 |
538908487 has 8 divisors (see below), whose sum is σ = 580677440. Its totient is φ = 497184480.
The previous prime is 538908467. The next prime is 538908511. The reversal of 538908487 is 784809835.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 538908487 - 219 = 538384199 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (538908407) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16162 + ... + 36592.
It is an arithmetic number, because the mean of its divisors is an integer number (72584680).
Almost surely, 2538908487 is an apocalyptic number.
538908487 is a deficient number, since it is larger than the sum of its proper divisors (41768953).
538908487 is a wasteful number, since it uses less digits than its factorization.
538908487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22473.
The product of its (nonzero) digits is 1935360, while the sum is 52.
The square root of 538908487 is about 23214.4025768487. The cubic root of 538908487 is about 813.7762441208.
The spelling of 538908487 in words is "five hundred thirty-eight million, nine hundred eight thousand, four hundred eighty-seven".
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