Base | Representation |
---|---|
bin | 1010011010111… |
… | …00001011011010 |
3 | 20002110212010002 |
4 | 11031130023122 |
5 | 134334044440 |
6 | 12401253002 |
7 | 2110652546 |
oct | 515341332 |
9 | 202425102 |
10 | 87409370 |
11 | 45381a54 |
12 | 25334162 |
13 | 15155a29 |
14 | b874a26 |
15 | 7a19115 |
hex | 535c2da |
87409370 has 32 divisors (see below), whose sum is σ = 160154496. Its totient is φ = 34344000.
The previous prime is 87409363. The next prime is 87409379. The reversal of 87409370 is 7390478.
It is not an unprimeable number, because it can be changed into a prime (87409379) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161300 + ... + 161840.
It is an arithmetic number, because the mean of its divisors is an integer number (5004828).
Almost surely, 287409370 is an apocalyptic number.
87409370 is a deficient number, since it is larger than the sum of its proper divisors (72745126).
87409370 is a wasteful number, since it uses less digits than its factorization.
87409370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 806.
The product of its (nonzero) digits is 42336, while the sum is 38.
The square root of 87409370 is about 9349.2978345970. The cubic root of 87409370 is about 443.7986703213.
The spelling of 87409370 in words is "eighty-seven million, four hundred nine thousand, three hundred seventy".
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