Search a number
-
+
194850447 = 31117220431
BaseRepresentation
bin10111001110100…
…10111010001111
3111120122102120020
423213102322033
5344340203242
631200153223
74554126051
oct1347227217
9446572506
10194850447
119aa96030
1255308813
13314a342c
141bc418d1
151218d6ec
hexb9d2e8f

194850447 has 24 divisors (see below), whose sum is σ = 301085952. Its totient is φ = 111139200.

The previous prime is 194850427. The next prime is 194850497. The reversal of 194850447 is 744058491.

It is not a de Polignac number, because 194850447 - 210 = 194849423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194850399 and 194850408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194850427) 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 23 ways as a sum of consecutive naturals, for example, 679 + ... + 19752.

It is an arithmetic number, because the mean of its divisors is an integer number (12545248).

Almost surely, 2194850447 is an apocalyptic number.

194850447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

194850447 is a deficient number, since it is larger than the sum of its proper divisors (106235505).

194850447 is a wasteful number, since it uses less digits than its factorization.

194850447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20479 (or 20462 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 194850447 is about 13958.8841602758. The cubic root of 194850447 is about 579.7407154577.

The spelling of 194850447 in words is "one hundred ninety-four million, eight hundred fifty thousand, four hundred forty-seven".

Divisors: 1 3 11 17 33 51 187 289 561 867 3179 9537 20431 61293 224741 347327 674223 1041981 3820597 5904559 11461791 17713677 64950149 194850447