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196761361 = 1183116631
BaseRepresentation
bin10111011101001…
…01011100010001
3111201020111211211
423232211130101
5400332330421
631305140121
74606305166
oct1356453421
9451214754
10196761361
11a10807a5
1255a8a641
13319c2154
141c1bc06d
15124199e1
hexbba5711

196761361 has 4 divisors (see below), whose sum is σ = 196789824. Its totient is φ = 196732900.

The previous prime is 196761347. The next prime is 196761407. The reversal of 196761361 is 163167691.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 163167691 = 473471653.

It is a cyclic number.

It is not a de Polignac number, because 196761361 - 25 = 196761329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196771361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3516 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (49197456).

Almost surely, 2196761361 is an apocalyptic number.

It is an amenable number.

196761361 is a deficient number, since it is larger than the sum of its proper divisors (28463).

196761361 is a wasteful number, since it uses less digits than its factorization.

196761361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28462.

The product of its digits is 40824, while the sum is 40.

The square root of 196761361 is about 14027.1651091730. The cubic root of 196761361 is about 581.6297415096.

The spelling of 196761361 in words is "one hundred ninety-six million, seven hundred sixty-one thousand, three hundred sixty-one".

Divisors: 1 11831 16631 196761361