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196494549 = 397675239
BaseRepresentation
bin10111011011001…
…00010011010101
3111200201221211220
423231210103111
5400300311144
631255320553
74604114256
oct1355442325
9450657756
10196494549
11a0a09299
1255980159
133192a884
141c14cb2d
15123b5919
hexbb644d5

196494549 has 8 divisors (see below), whose sum is σ = 264694080. Its totient is φ = 129645696.

The previous prime is 196494539. The next prime is 196494569. The reversal of 196494549 is 945494691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 196494549 - 24 = 196494533 is a prime.

It is a super-2 number, since 2×1964945492 = 77220215573426802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196494539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337329 + ... + 337910.

It is an arithmetic number, because the mean of its divisors is an integer number (33086760).

Almost surely, 2196494549 is an apocalyptic number.

It is an amenable number.

196494549 is a deficient number, since it is larger than the sum of its proper divisors (68199531).

196494549 is an equidigital number, since it uses as much as digits as its factorization.

196494549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675339.

The product of its digits is 1399680, while the sum is 51.

The square root of 196494549 is about 14017.6513367968. The cubic root of 196494549 is about 581.3667224025.

The spelling of 196494549 in words is "one hundred ninety-six million, four hundred ninety-four thousand, five hundred forty-nine".

Divisors: 1 3 97 291 675239 2025717 65498183 196494549