Base | Representation |
---|---|
bin | 111010100110… |
… | …010000010000 |
3 | 1001220102101102 |
4 | 322212100100 |
5 | 12413023130 |
6 | 1305123532 |
7 | 244365242 |
oct | 72462020 |
9 | 31812342 |
10 | 15361040 |
11 | 8741a82 |
12 | 51895a8 |
13 | 324aa96 |
14 | 207c092 |
15 | 1536645 |
hex | ea6410 |
15361040 has 20 divisors (see below), whose sum is σ = 35714604. Its totient is φ = 6144384.
The previous prime is 15361001. The next prime is 15361061. The reversal of 15361040 is 4016351.
It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 3444736 = 3452^2 + 1856^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a nialpdrome in base 16.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95927 + ... + 96086.
Almost surely, 215361040 is an apocalyptic number.
15361040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
15361040 is an abundant number, since it is smaller than the sum of its proper divisors (20353564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15361040 is a wasteful number, since it uses less digits than its factorization.
15361040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192026 (or 192020 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 15361040 is about 3919.3162669017. The cubic root of 15361040 is about 248.5842106306.
Adding to 15361040 its reverse (4016351), we get a palindrome (19377391).
The spelling of 15361040 in words is "fifteen million, three hundred sixty-one thousand, forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •