Search a number
-
+
2195436271 = 72920815197
BaseRepresentation
bin1000001011011011…
…1011001011101111
312200000002201101111
42002312323023233
513444012430041
61001503452451
7105255620560
oct20266731357
95600081344
102195436271
11a272a2846
125132b7127
1328cac4322
1416b810167
15ccb19981
hex82dbb2ef

2195436271 has 16 divisors (see below), whose sum is σ = 2597336640. Its totient is φ = 1815690240.

The previous prime is 2195436233. The next prime is 2195436289. The reversal of 2195436271 is 1726345912.

It is a happy number.

It is not a de Polignac number, because 2195436271 - 211 = 2195434223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195436571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419845 + ... + 425041.

It is an arithmetic number, because the mean of its divisors is an integer number (162333540).

Almost surely, 22195436271 is an apocalyptic number.

2195436271 is a deficient number, since it is larger than the sum of its proper divisors (401900369).

2195436271 is a wasteful number, since it uses less digits than its factorization.

2195436271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314.

The product of its digits is 90720, while the sum is 40.

The square root of 2195436271 is about 46855.4828275198. The cubic root of 2195436271 is about 1299.6914989852.

The spelling of 2195436271 in words is "two billion, one hundred ninety-five million, four hundred thirty-six thousand, two hundred seventy-one".

Divisors: 1 7 29 203 2081 5197 14567 36379 60349 150713 422443 1054991 10814957 75704699 313633753 2195436271