Base | Representation |
---|---|
bin | 111100101011111… |
… | …010001100011100 |
3 | 2121221211001100010 |
4 | 330223322030130 |
5 | 4041121043031 |
6 | 245010203220 |
7 | 34142035305 |
oct | 7453721434 |
9 | 2557731303 |
10 | 1018143516 |
11 | 482796325 |
12 | 244b83510 |
13 | 132c205b0 |
14 | 993117ac |
15 | 5e5b7246 |
hex | 3cafa31c |
1018143516 has 48 divisors (see below), whose sum is σ = 2612865024. Its totient is φ = 306607296.
The previous prime is 1018143499. The next prime is 1018143517. The reversal of 1018143516 is 6153418101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1018143517) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62100 + ... + 76763.
It is an arithmetic number, because the mean of its divisors is an integer number (54434688).
Almost surely, 21018143516 is an apocalyptic number.
It is an amenable number.
1018143516 is an abundant number, since it is smaller than the sum of its proper divisors (1594721508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1018143516 is a wasteful number, since it uses less digits than its factorization.
1018143516 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 138930 (or 138928 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 30.
The square root of 1018143516 is about 31908.3612239801. The cubic root of 1018143516 is about 1006.0116265930.
The spelling of 1018143516 in words is "one billion, eighteen million, one hundred forty-three thousand, five hundred sixteen".
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