Base | Representation |
---|---|
bin | 1010011110011… |
… | …11001101010101 |
3 | 20010100210102120 |
4 | 11033033031111 |
5 | 134444134113 |
6 | 12415330153 |
7 | 2114654316 |
oct | 517171525 |
9 | 203323376 |
10 | 87880533 |
11 | 45673a44 |
12 | 25520959 |
13 | 1528c320 |
14 | b95860d |
15 | 7aada23 |
hex | 53cf355 |
87880533 has 16 divisors (see below), whose sum is σ = 126368256. Its totient is φ = 54002880.
The previous prime is 87880511. The next prime is 87880537. The reversal of 87880533 is 33508878.
It is not a de Polignac number, because 87880533 - 213 = 87872341 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87880537) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38716 + ... + 40922.
It is an arithmetic number, because the mean of its divisors is an integer number (7898016).
Almost surely, 287880533 is an apocalyptic number.
It is an amenable number.
87880533 is a deficient number, since it is larger than the sum of its proper divisors (38487723).
87880533 is a wasteful number, since it uses less digits than its factorization.
87880533 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3244.
The product of its (nonzero) digits is 161280, while the sum is 42.
The square root of 87880533 is about 9374.4617445483. The cubic root of 87880533 is about 444.5946449676.
The spelling of 87880533 in words is "eighty-seven million, eight hundred eighty thousand, five hundred thirty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •