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196344881 = 237182811
BaseRepresentation
bin10111011001111…
…11110000110001
3111200110100112122
423230333300301
5400231014011
631252204025
74602622025
oct1354776061
9450410478
10196344881
11a09168a7
1255909615
13318a7705
141c110385
15123863db
hexbb3fc31

196344881 has 4 divisors (see below), whose sum is σ = 196430064. Its totient is φ = 196259700.

The previous prime is 196344853. The next prime is 196344887. The reversal of 196344881 is 188443691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196344881 - 218 = 196082737 is a prime.

It is a super-2 number, since 2×1963448812 = 77102624589808322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (196344887) 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 3 ways as a sum of consecutive naturals, for example, 39035 + ... + 43776.

It is an arithmetic number, because the mean of its divisors is an integer number (49107516).

Almost surely, 2196344881 is an apocalyptic number.

It is an amenable number.

196344881 is a deficient number, since it is larger than the sum of its proper divisors (85183).

196344881 is an equidigital number, since it uses as much as digits as its factorization.

196344881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85182.

The product of its digits is 165888, while the sum is 44.

The square root of 196344881 is about 14012.3117650158. The cubic root of 196344881 is about 581.2190777707.

The spelling of 196344881 in words is "one hundred ninety-six million, three hundred forty-four thousand, eight hundred eighty-one".

Divisors: 1 2371 82811 196344881