Base | Representation |
---|---|
bin | 111111011110111… |
… | …1001010110011100 |
3 | 12111110021002012020 |
4 | 1332331321112130 |
5 | 13330304424113 |
6 | 551212340140 |
7 | 103534006110 |
oct | 17675712634 |
9 | 5443232166 |
10 | 2130154908 |
11 | 9a3464a02 |
12 | 4b5474650 |
13 | 27c4184bb |
14 | 162c99740 |
15 | c7022023 |
hex | 7ef7959c |
2130154908 has 48 divisors (see below), whose sum is σ = 5690221824. Its totient is φ = 607564800.
The previous prime is 2130154889. The next prime is 2130154909. The reversal of 2130154908 is 8094510312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130154909) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27708 + ... + 70908.
It is an arithmetic number, because the mean of its divisors is an integer number (118546288).
Almost surely, 22130154908 is an apocalyptic number.
2130154908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
2130154908 is an abundant number, since it is smaller than the sum of its proper divisors (3560066916).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130154908 is a wasteful number, since it uses less digits than its factorization.
2130154908 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43802 (or 43800 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 33.
The square root of 2130154908 is about 46153.6012462733. The cubic root of 2130154908 is about 1286.6795417231.
The spelling of 2130154908 in words is "two billion, one hundred thirty million, one hundred fifty-four thousand, nine hundred eight".
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