Base | Representation |
---|---|
bin | 1010011101010… |
… | …11001100101001 |
3 | 20010002022002121 |
4 | 11032223030221 |
5 | 134424424113 |
6 | 12412231241 |
7 | 2113501303 |
oct | 516531451 |
9 | 203068077 |
10 | 87733033 |
11 | 45583143 |
12 | 2546b521 |
13 | 1523a14b |
14 | b91a973 |
15 | 7a7ee8d |
hex | 53ab329 |
87733033 has 4 divisors (see below), whose sum is σ = 90758340. Its totient is φ = 84707728.
The previous prime is 87733027. The next prime is 87733097. The reversal of 87733033 is 33033778.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33033778 = 2 ⋅16516889.
It can be written as a sum of positive squares in 2 ways, for example, as 74425129 + 13307904 = 8627^2 + 3648^2 .
It is a cyclic number.
It is not a de Polignac number, because 87733033 - 25 = 87733001 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 87733033.
It is not an unprimeable number, because it can be changed into a prime (87733133) 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, 1512610 + ... + 1512667.
It is an arithmetic number, because the mean of its divisors is an integer number (22689585).
Almost surely, 287733033 is an apocalyptic number.
It is an amenable number.
87733033 is a deficient number, since it is larger than the sum of its proper divisors (3025307).
87733033 is a wasteful number, since it uses less digits than its factorization.
87733033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3025306.
The product of its (nonzero) digits is 31752, while the sum is 34.
The square root of 87733033 is about 9366.5913223541. The cubic root of 87733033 is about 444.3457675769.
The spelling of 87733033 in words is "eighty-seven million, seven hundred thirty-three thousand, thirty-three".
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