Base | Representation |
---|---|
bin | 1010011000111… |
… | …00010001101011 |
3 | 20001222120001220 |
4 | 11030130101223 |
5 | 134302211002 |
6 | 12351513123 |
7 | 2105512500 |
oct | 514342153 |
9 | 201876056 |
10 | 87147627 |
11 | 45213336 |
12 | 252287a3 |
13 | 15093858 |
14 | b8074a7 |
15 | 79b67bc |
hex | 531c46b |
87147627 has 48 divisors (see below), whose sum is σ = 146627712. Its totient is φ = 45722880.
The previous prime is 87147611. The next prime is 87147629. The reversal of 87147627 is 72674178.
It is not a de Polignac number, because 87147627 - 24 = 87147611 is a prime.
It is a super-2 number, since 2×871476272 = 15189417783462258, which contains 22 as substring.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (87147629) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107052 + ... + 107862.
It is an arithmetic number, because the mean of its divisors is an integer number (3054744).
Almost surely, 287147627 is an apocalyptic number.
87147627 is a deficient number, since it is larger than the sum of its proper divisors (59480085).
87147627 is a wasteful number, since it uses less digits than its factorization.
87147627 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 888 (or 881 counting only the distinct ones).
The product of its digits is 131712, while the sum is 42.
The square root of 87147627 is about 9335.2893367051. The cubic root of 87147627 is about 443.3552497629.
The spelling of 87147627 in words is "eighty-seven million, one hundred forty-seven thousand, six hundred twenty-seven".
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