Base | Representation |
---|---|
bin | 1010011110010… |
… | …10001100101010 |
3 | 20010022202021110 |
4 | 11033022030222 |
5 | 134443010020 |
6 | 12415051150 |
7 | 2114540430 |
oct | 517121452 |
9 | 203282243 |
10 | 87860010 |
11 | 4565a587 |
12 | 25510ab6 |
13 | 15282b94 |
14 | b950d50 |
15 | 7aa78e0 |
hex | 53ca32a |
87860010 has 32 divisors (see below), whose sum is σ = 240988032. Its totient is φ = 20082240.
The previous prime is 87859991. The next prime is 87860021. The reversal of 87860010 is 1006878.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a self number, because there is not a number n which added to its sum of digits gives 87860010.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208981 + ... + 209400.
It is an arithmetic number, because the mean of its divisors is an integer number (7530876).
Almost surely, 287860010 is an apocalyptic number.
87860010 is an abundant number, since it is smaller than the sum of its proper divisors (153128022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87860010 is a wasteful number, since it uses less digits than its factorization.
87860010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 418398.
The product of its (nonzero) digits is 2688, while the sum is 30.
The square root of 87860010 is about 9373.3670577867. The cubic root of 87860010 is about 444.5600331070.
Adding to 87860010 its reverse (1006878), we get a palindrome (88866888).
The spelling of 87860010 in words is "eighty-seven million, eight hundred sixty thousand, ten".
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