Base | Representation |
---|---|
bin | 1010011010010… |
… | …00111010111001 |
3 | 20002022211220120 |
4 | 11031020322321 |
5 | 134324033424 |
6 | 12355443453 |
7 | 2110203561 |
oct | 515107271 |
9 | 202284816 |
10 | 87330489 |
11 | 45328764 |
12 | 252b6589 |
13 | 15128b5c |
14 | b853da1 |
15 | 7a00a79 |
hex | 5348eb9 |
87330489 has 8 divisors (see below), whose sum is σ = 116676000. Its totient is φ = 58102656.
The previous prime is 87330487. The next prime is 87330491. The reversal of 87330489 is 98403378.
It is an interprime number because it is at equal distance from previous prime (87330487) and next prime (87330491).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87330489 - 21 = 87330487 is a prime.
It is a super-2 number, since 2×873304892 = 15253228617958242, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87330489.
It is not an unprimeable number, because it can be changed into a prime (87330487) 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, 27672 + ... + 30665.
It is an arithmetic number, because the mean of its divisors is an integer number (14584500).
Almost surely, 287330489 is an apocalyptic number.
It is an amenable number.
87330489 is a deficient number, since it is larger than the sum of its proper divisors (29345511).
87330489 is a wasteful number, since it uses less digits than its factorization.
87330489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58839.
The product of its (nonzero) digits is 145152, while the sum is 42.
The square root of 87330489 is about 9345.0783303298. The cubic root of 87330489 is about 443.6651307905.
The spelling of 87330489 in words is "eighty-seven million, three hundred thirty thousand, four hundred eighty-nine".
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