Base | Representation |
---|---|
bin | 111011111011101… |
… | …011011001100000 |
3 | 2121002000200200202 |
4 | 323323223121200 |
5 | 4024402000000 |
6 | 243435204332 |
7 | 33626415611 |
oct | 7373533140 |
9 | 2532020622 |
10 | 1005500000 |
11 | 47664003a |
12 | 2408a66a8 |
13 | 13041471b |
14 | 9777dc08 |
15 | 5d41add5 |
hex | 3beeb660 |
1005500000 has 84 divisors (see below), whose sum is σ = 2475671436. Its totient is φ = 402000000.
The previous prime is 1005499997. The next prime is 1005500053. The reversal of 1005500000 is 55001.
It is a super-2 number, since 2×10055000002 = 2022060500000000000, which contains 22 as substring.
It is a hoax number, since the sum of its digits (11) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 498995 + ... + 501005.
It is an arithmetic number, because the mean of its divisors is an integer number (29472279).
Almost surely, 21005500000 is an apocalyptic number.
1005500000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1005500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237835718).
1005500000 is an abundant number, since it is smaller than the sum of its proper divisors (1470171436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1005500000 is an frugal number, since it uses more digits than its factorization.
1005500000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2051 (or 2018 counting only the distinct ones).
The product of its (nonzero) digits is 25, while the sum is 11.
The square root of 1005500000 is about 31709.6199914159. The cubic root of 1005500000 is about 1001.8299824548.
Adding to 1005500000 its reverse (55001), we get a palindrome (1005555001).
The spelling of 1005500000 in words is "one billion, five million, five hundred thousand".
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