Base | Representation |
---|---|
bin | 1010011001100… |
… | …00001010000001 |
3 | 20002010200202211 |
4 | 11030300022001 |
5 | 134312312212 |
6 | 12353342121 |
7 | 2106302056 |
oct | 514601201 |
9 | 202120684 |
10 | 87229057 |
11 | 45269533 |
12 | 25267941 |
13 | 150c1936 |
14 | b82902d |
15 | 79d09a7 |
hex | 5330281 |
87229057 has 8 divisors (see below), whose sum is σ = 97221600. Its totient is φ = 77776704.
The previous prime is 87229007. The next prime is 87229067. The reversal of 87229057 is 75092278.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87229057 - 27 = 87228929 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87229007) 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, 134707 + ... + 135352.
It is an arithmetic number, because the mean of its divisors is an integer number (12152700).
Almost surely, 287229057 is an apocalyptic number.
It is an amenable number.
87229057 is a deficient number, since it is larger than the sum of its proper divisors (9992543).
87229057 is a wasteful number, since it uses less digits than its factorization.
87229057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 270095.
The product of its (nonzero) digits is 70560, while the sum is 40.
The square root of 87229057 is about 9339.6497257660. The cubic root of 87229057 is about 443.4932958979.
It can be divided in two parts, 872 and 29057, that added together give a square (29929 = 1732).
The spelling of 87229057 in words is "eighty-seven million, two hundred twenty-nine thousand, fifty-seven".
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