Base | Representation |
---|---|
bin | 1010011100111… |
… | …01111111000000 |
3 | 20002222112212010 |
4 | 11032131333000 |
5 | 134421211122 |
6 | 12411132520 |
7 | 2113154436 |
oct | 516357700 |
9 | 202875763 |
10 | 87678912 |
11 | 45546512 |
12 | 25444140 |
13 | 1521b619 |
14 | b904d56 |
15 | 7a6de0c |
hex | 539dfc0 |
87678912 has 56 divisors (see below), whose sum is σ = 239483392. Its totient is φ = 28281600.
The previous prime is 87678827. The next prime is 87678931. The reversal of 87678912 is 21987678.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 13317.
Almost surely, 287678912 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87678912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119741696).
87678912 is an abundant number, since it is smaller than the sum of its proper divisors (151804480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87678912 is a wasteful number, since it uses less digits than its factorization.
87678912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14777 (or 14767 counting only the distinct ones).
The product of its digits is 338688, while the sum is 48.
The square root of 87678912 is about 9363.7018320747. The cubic root of 87678912 is about 444.2543790269.
The spelling of 87678912 in words is "eighty-seven million, six hundred seventy-eight thousand, nine hundred twelve".
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