Base | Representation |
---|---|
bin | 1010011001100… |
… | …00100101001001 |
3 | 20002010210011010 |
4 | 11030300211021 |
5 | 134312341133 |
6 | 12353354133 |
7 | 2106310116 |
oct | 514604511 |
9 | 202123133 |
10 | 87230793 |
11 | 4526a871 |
12 | 25268949 |
13 | 150c2670 |
14 | b82990d |
15 | 79d1263 |
hex | 5330949 |
87230793 has 32 divisors (see below), whose sum is σ = 130880512. Its totient is φ = 51321600.
The previous prime is 87230761. The next prime is 87230827. The reversal of 87230793 is 39703278.
It is not a de Polignac number, because 87230793 - 25 = 87230761 is a prime.
It is a super-2 number, since 2×872307932 = 15218422494817698, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87230713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87528 + ... + 88518.
It is an arithmetic number, because the mean of its divisors is an integer number (4090016).
Almost surely, 287230793 is an apocalyptic number.
It is an amenable number.
87230793 is a deficient number, since it is larger than the sum of its proper divisors (43649719).
87230793 is a wasteful number, since it uses less digits than its factorization.
87230793 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1105.
The product of its (nonzero) digits is 63504, while the sum is 39.
The square root of 87230793 is about 9339.7426624078. The cubic root of 87230793 is about 443.4962379575.
The spelling of 87230793 in words is "eighty-seven million, two hundred thirty thousand, seven hundred ninety-three".
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