Base | Representation |
---|---|
bin | 111010101010… |
… | …111000110000 |
3 | 1001221101102020 |
4 | 322222320300 |
5 | 12414130031 |
6 | 1305351440 |
7 | 244504461 |
oct | 72527060 |
9 | 31841366 |
10 | 15380016 |
11 | 8755263 |
12 | 5198580 |
13 | 3256602 |
14 | 2084d68 |
15 | 153c096 |
hex | eaae30 |
15380016 has 20 divisors (see below), whose sum is σ = 39731832. Its totient is φ = 5126656.
The previous prime is 15380011. The next prime is 15380023. The reversal of 15380016 is 61008351.
15380016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (15380011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160161 + ... + 160256.
Almost surely, 215380016 is an apocalyptic number.
15380016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
15380016 is an abundant number, since it is smaller than the sum of its proper divisors (24351816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15380016 is a wasteful number, since it uses less digits than its factorization.
15380016 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 320428 (or 320422 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 24.
The square root of 15380016 is about 3921.7363501388. The cubic root of 15380016 is about 248.6865299376.
Adding to 15380016 its reverse (61008351), we get a palindrome (76388367).
The spelling of 15380016 in words is "fifteen million, three hundred eighty thousand, sixteen".
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