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194482197 = 32713832861
BaseRepresentation
bin10111001011110…
…01000000010101
3111112221201102100
423211321000111
5344241412242
631144232313
74551033330
oct1345710025
9445851370
10194482197
119a864398
125516b699
13313a4930
141bb87617
151211954c
hexb979015

194482197 has 48 divisors (see below), whose sum is σ = 350034048. Its totient is φ = 101312640.

The previous prime is 194482139. The next prime is 194482199. The reversal of 194482197 is 791284491.

It is a happy number.

194482197 is a `hidden beast` number, since 19 + 448 + 2 + 197 = 666.

It is not a de Polignac number, because 194482197 - 26 = 194482133 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194482199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66547 + ... + 69407.

It is an arithmetic number, because the mean of its divisors is an integer number (7292376).

Almost surely, 2194482197 is an apocalyptic number.

It is an amenable number.

194482197 is a deficient number, since it is larger than the sum of its proper divisors (155551851).

194482197 is a wasteful number, since it uses less digits than its factorization.

194482197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2967 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 194482197 is about 13945.6873979019. The cubic root of 194482197 is about 579.3752656897.

The spelling of 194482197 in words is "one hundred ninety-four million, four hundred eighty-two thousand, one hundred ninety-seven".

Divisors: 1 3 7 9 13 21 39 63 83 91 117 249 273 581 747 819 1079 1743 2861 3237 5229 7553 8583 9711 20027 22659 25749 37193 60081 67977 111579 180243 237463 260351 334737 712389 781053 1662241 2137167 2343159 3087019 4986723 9261057 14960169 21609133 27783171 64827399 194482197