Base | Representation |
---|---|
bin | 10111101101111… |
… | …11011110001010 |
3 | 111212101110211220 |
4 | 23312333132022 |
5 | 401413341010 |
6 | 31424302510 |
7 | 4634114160 |
oct | 1366773612 |
9 | 455343756 |
10 | 198965130 |
11 | a23464a1 |
12 | 56771a36 |
13 | 322b4260 |
14 | 1c5d3230 |
15 | 12702970 |
hex | bdbf78a |
198965130 has 128 divisors (see below), whose sum is σ = 606928896. Its totient is φ = 40608000.
The previous prime is 198965119. The next prime is 198965153. The reversal of 198965130 is 31569891.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83455 + ... + 85805.
It is an arithmetic number, because the mean of its divisors is an integer number (4741632).
Almost surely, 2198965130 is an apocalyptic number.
198965130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a pronic number, being equal to 14105×14106.
It is a practical number, because each smaller number is the sum of distinct divisors of 198965130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303464448).
198965130 is an abundant number, since it is smaller than the sum of its proper divisors (407963766).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
198965130 is a wasteful number, since it uses less digits than its factorization.
198965130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2412.
The product of its (nonzero) digits is 58320, while the sum is 42.
The square root of 198965130 is about 14105.4999911382. The cubic root of 198965130 is about 583.7931434930.
The spelling of 198965130 in words is "one hundred ninety-eight million, nine hundred sixty-five thousand, one hundred thirty".
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