Base | Representation |
---|---|
bin | 1110011010101011… |
… | …1001011100001000 |
3 | 100222201002121211112 |
4 | 3212222321130020 |
5 | 30411210130000 |
6 | 1440003345452 |
7 | 164621333261 |
oct | 34652713410 |
9 | 10881077745 |
10 | 3870005000 |
11 | 1706576044 |
12 | 900082288 |
13 | 498a082b4 |
14 | 289d95968 |
15 | 179b48235 |
hex | e6ab9708 |
3870005000 has 40 divisors (see below), whose sum is σ = 9067433430. Its totient is φ = 1548000000.
The previous prime is 3870004993. The next prime is 3870005003. The reversal of 3870005000 is 5000783.
3870005000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 5 ways, for example, as 171662404 + 3698342596 = 13102^2 + 60814^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (3870005003) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 382001 + ... + 392000.
Almost surely, 23870005000 is an apocalyptic number.
It is an amenable number.
3870005000 is an abundant number, since it is smaller than the sum of its proper divisors (5197428430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3870005000 is an equidigital number, since it uses as much as digits as its factorization.
3870005000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 774027 (or 774008 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 3870005000 is about 62209.3642468720. The cubic root of 3870005000 is about 1570.0151458368.
Adding to 3870005000 its reverse (5000783), we get a palindrome (3875005783).
The spelling of 3870005000 in words is "three billion, eight hundred seventy million, five thousand".
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