Base | Representation |
---|---|
bin | 1010011010000… |
… | …11011011101010 |
3 | 20002021201002000 |
4 | 11031003123222 |
5 | 134322324020 |
6 | 12355151430 |
7 | 2110051206 |
oct | 515033352 |
9 | 202251060 |
10 | 87308010 |
11 | 45312889 |
12 | 252a5576 |
13 | 1511b85a |
14 | b849b06 |
15 | 79e9090 |
hex | 53436ea |
87308010 has 64 divisors (see below), whose sum is σ = 234178560. Its totient is φ = 23146560.
The previous prime is 87307991. The next prime is 87308029. The reversal of 87308010 is 1080378.
It is an interprime number because it is at equal distance from previous prime (87307991) and next prime (87308029).
It is a super-2 number, since 2×873080102 = 15245377220320200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50724 + ... + 52416.
It is an arithmetic number, because the mean of its divisors is an integer number (3659040).
Almost surely, 287308010 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87308010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117089280).
87308010 is an abundant number, since it is smaller than the sum of its proper divisors (146870550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87308010 is a wasteful number, since it uses less digits than its factorization.
87308010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1900 (or 1894 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 87308010 is about 9343.8755342738. The cubic root of 87308010 is about 443.6270608319.
Adding to 87308010 its reverse (1080378), we get a palindrome (88388388).
The spelling of 87308010 in words is "eighty-seven million, three hundred eight thousand, ten".
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