Base | Representation |
---|---|
bin | 1010011100111… |
… | …00100101111000 |
3 | 20002222021000212 |
4 | 11032130211320 |
5 | 134421020313 |
6 | 12411050252 |
7 | 2113132010 |
oct | 516344570 |
9 | 202867025 |
10 | 87673208 |
11 | 455421a7 |
12 | 25440988 |
13 | 15218b4c |
14 | b902c40 |
15 | 7a6c3a8 |
hex | 539c978 |
87673208 has 32 divisors (see below), whose sum is σ = 193935360. Its totient is φ = 36361440.
The previous prime is 87673207. The next prime is 87673213. The reversal of 87673208 is 80237678.
It is a super-2 number, since 2×876732082 = 15373182802022528, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87673207) 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, 23516 + ... + 26987.
It is an arithmetic number, because the mean of its divisors is an integer number (6060480).
Almost surely, 287673208 is an apocalyptic number.
It is an amenable number.
87673208 is an abundant number, since it is smaller than the sum of its proper divisors (106262152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87673208 is a wasteful number, since it uses less digits than its factorization.
87673208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50547 (or 50543 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 41.
The square root of 87673208 is about 9363.3972467262. The cubic root of 87673208 is about 444.2447450801.
The spelling of 87673208 in words is "eighty-seven million, six hundred seventy-three thousand, two hundred eight".
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