Search a number
-
+
2195736405 = 35178610731
BaseRepresentation
bin1000001011100000…
…0100011101010101
312200000122222002120
42002320010131111
513444102031110
61001514130153
7105261310602
oct20270043525
95600588076
102195736405
11a27488295
12513420959
1328cb9ab15
1416b88b6a9
15ccb78870
hex82e04755

2195736405 has 16 divisors (see below), whose sum is σ = 3719836224. Its totient is φ = 1102173440.

The previous prime is 2195736383. The next prime is 2195736409. The reversal of 2195736405 is 5046375912.

It is not a de Polignac number, because 2195736405 - 26 = 2195736341 is a prime.

It is a Smith number, since the sum of its digits (42) 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 (2195736409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305111 + ... + 4305620.

It is an arithmetic number, because the mean of its divisors is an integer number (232489764).

Almost surely, 22195736405 is an apocalyptic number.

It is an amenable number.

2195736405 is a deficient number, since it is larger than the sum of its proper divisors (1524099819).

2195736405 is a wasteful number, since it uses less digits than its factorization.

2195736405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8610756.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 2195736405 is about 46858.6854809223. The cubic root of 2195736405 is about 1299.7507224205.

The spelling of 2195736405 in words is "two billion, one hundred ninety-five million, seven hundred thirty-six thousand, four hundred five".

Divisors: 1 3 5 15 17 51 85 255 8610731 25832193 43053655 129160965 146382427 439147281 731912135 2195736405