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20198060 = 2255917117
BaseRepresentation
bin100110100001…
…1001010101100
31102000011112022
41031003022230
520132314220
62000525312
7333452321
oct115031254
942004468
1020198060
1110446113
126920838
13425261c
14297ab48
151b8e925
hex13432ac

20198060 has 24 divisors (see below), whose sum is σ = 43137360. Its totient is φ = 7941824.

The previous prime is 20198053. The next prime is 20198077. The reversal of 20198060 is 6089102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7379 + ... + 9738.

It is an arithmetic number, because the mean of its divisors is an integer number (1797390).

Almost surely, 220198060 is an apocalyptic number.

20198060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20198060 is an abundant number, since it is smaller than the sum of its proper divisors (22939300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20198060 is a wasteful number, since it uses less digits than its factorization.

20198060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17185 (or 17183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 20198060 is about 4494.2251834994. The cubic root of 20198060 is about 272.3348492883.

The spelling of 20198060 in words is "twenty million, one hundred ninety-eight thousand, sixty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 17117 34234 68468 85585 171170 342340 1009903 2019806 4039612 5049515 10099030 20198060