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196044691 = 227863633
BaseRepresentation
bin10111010111101…
…10011110010011
3111122220002202111
423223312132103
5400141412231
631241530151
74600231603
oct1353663623
9448802674
10196044691
11a0731307
12557a3957
1331800b9b
141c072c03
15123274b1
hexbaf6793

196044691 has 4 divisors (see below), whose sum is σ = 196908552. Its totient is φ = 195180832.

The previous prime is 196044689. The next prime is 196044701. The reversal of 196044691 is 196440691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196044691 - 21 = 196044689 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196044631) 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, 431590 + ... + 432043.

It is an arithmetic number, because the mean of its divisors is an integer number (49227138).

Almost surely, 2196044691 is an apocalyptic number.

196044691 is a deficient number, since it is larger than the sum of its proper divisors (863861).

196044691 is an equidigital number, since it uses as much as digits as its factorization.

196044691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863860.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 196044691 is about 14001.5960161690. The cubic root of 196044691 is about 580.9227197364.

The spelling of 196044691 in words is "one hundred ninety-six million, forty-four thousand, six hundred ninety-one".

Divisors: 1 227 863633 196044691