Base | Representation |
---|---|
bin | 1010011011010… |
… | …11101001001100 |
3 | 20002121002000020 |
4 | 11031223221030 |
5 | 134343111331 |
6 | 12402502140 |
7 | 2111335332 |
oct | 515535114 |
9 | 202532006 |
10 | 87472716 |
11 | 45415601 |
12 | 25364950 |
13 | 15178806 |
14 | b88db52 |
15 | 7a2cc96 |
hex | 536ba4c |
87472716 has 24 divisors (see below), whose sum is σ = 204316224. Its totient is φ = 29127120.
The previous prime is 87472711. The next prime is 87472717. The reversal of 87472716 is 61727478.
It is not an unprimeable number, because it can be changed into a prime (87472711) 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, 10231 + ... + 16721.
It is an arithmetic number, because the mean of its divisors is an integer number (8513176).
Almost surely, 287472716 is an apocalyptic number.
It is an amenable number.
87472716 is an abundant number, since it is smaller than the sum of its proper divisors (116843508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87472716 is a wasteful number, since it uses less digits than its factorization.
87472716 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7621 (or 7619 counting only the distinct ones).
The product of its digits is 131712, while the sum is 42.
The square root of 87472716 is about 9352.6849620844. The cubic root of 87472716 is about 443.9058521262.
It can be divided in two parts, 87472 and 716, that added together give a palindrome (88188).
The spelling of 87472716 in words is "eighty-seven million, four hundred seventy-two thousand, seven hundred sixteen".
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