Base | Representation |
---|---|
bin | 101000100111101000… |
… | …0011010001011101010 |
3 | 22100011010211201221002 |
4 | 1101033100122023222 |
5 | 2412121114010110 |
6 | 104023353115002 |
7 | 6205421445632 |
oct | 1211720321352 |
9 | 270133751832 |
10 | 87229047530 |
11 | 33aa2583529 |
12 | 14aa49b8a62 |
13 | 82c1a25631 |
14 | 4316cb96c2 |
15 | 2407e7daa5 |
hex | 144f41a2ea |
87229047530 has 32 divisors (see below), whose sum is σ = 157352317200. Its totient is φ = 34816122880.
The previous prime is 87229047527. The next prime is 87229047559. The reversal of 87229047530 is 3574092278.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 65380955809 + 21848091721 = 255697^2 + 147811^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18760646 + ... + 18765294.
Almost surely, 287229047530 is an apocalyptic number.
87229047530 is a deficient number, since it is larger than the sum of its proper divisors (70123269670).
87229047530 is a wasteful number, since it uses less digits than its factorization.
87229047530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8314.
The product of its (nonzero) digits is 846720, while the sum is 47.
The spelling of 87229047530 in words is "eighty-seven billion, two hundred twenty-nine million, forty-seven thousand, five hundred thirty".
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