Base | Representation |
---|---|
bin | 1010011000100… |
… | …10010111000010 |
3 | 20001220111100120 |
4 | 11030102113002 |
5 | 134244411020 |
6 | 12351001110 |
7 | 2105253204 |
oct | 514222702 |
9 | 201814316 |
10 | 87107010 |
11 | 45195871 |
12 | 25209196 |
13 | 1507b213 |
14 | b7d6774 |
15 | 79a9740 |
hex | 53125c2 |
87107010 has 64 divisors (see below), whose sum is σ = 220060800. Its totient is φ = 22034432.
The previous prime is 87106967. The next prime is 87107047. The reversal of 87107010 is 1070178.
It is a super-2 number, since 2×871070102 = 15175262382280200, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50482 + ... + 52178.
It is an arithmetic number, because the mean of its divisors is an integer number (3438450).
Almost surely, 287107010 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87107010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110030400).
87107010 is an abundant number, since it is smaller than the sum of its proper divisors (132953790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87107010 is a wasteful number, since it uses less digits than its factorization.
87107010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1795.
The product of its (nonzero) digits is 392, while the sum is 24.
The square root of 87107010 is about 9333.1136283665. The cubic root of 87107010 is about 443.2863606868.
Adding to 87107010 its reverse (1070178), we get a palindrome (88177188).
The spelling of 87107010 in words is "eighty-seven million, one hundred seven thousand, ten".
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