Base | Representation |
---|---|
bin | 1010011101001… |
… | …11000011100110 |
3 | 20010001102211100 |
4 | 11032213003212 |
5 | 134423403240 |
6 | 12412020530 |
7 | 2113400661 |
oct | 516470346 |
9 | 203042740 |
10 | 87716070 |
11 | 45571422 |
12 | 25461746 |
13 | 15232500 |
14 | b9146d8 |
15 | 7a79e30 |
hex | 53a70e6 |
87716070 has 144 divisors (see below), whose sum is σ = 253506240. Its totient is φ = 21026304.
The previous prime is 87716063. The next prime is 87716071. The reversal of 87716070 is 7061778.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87716071) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1110291 + ... + 1110369.
It is an arithmetic number, because the mean of its divisors is an integer number (1760460).
Almost surely, 287716070 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87716070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126753120).
87716070 is an abundant number, since it is smaller than the sum of its proper divisors (165790170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87716070 is a wasteful number, since it uses less digits than its factorization.
87716070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 191 (or 175 counting only the distinct ones).
The product of its (nonzero) digits is 16464, while the sum is 36.
The square root of 87716070 is about 9365.6857730761. The cubic root of 87716070 is about 444.3171279534.
It can be divided in two parts, 8771 and 6070, that added together give a palindrome (14841).
The spelling of 87716070 in words is "eighty-seven million, seven hundred sixteen thousand, seventy".
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