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2195133631 = 191038771279
BaseRepresentation
bin1000001011010111…
…0001010010111111
312122222112100020121
42002311301102333
513443423234011
61001453155411
7105253220335
oct20265612277
95588470217
102195133631
11a27106429
1251318bb67
1328ca19652
1416b771b55
15ccaa9e71
hex82d714bf

2195133631 has 16 divisors (see below), whose sum is σ = 2337587200. Its totient is φ = 2055453408.

The previous prime is 2195133623. The next prime is 2195133641. The reversal of 2195133631 is 1363315912.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2195133631 - 23 = 2195133623 is a prime.

It is a super-2 number, since 2×21951336312 = 9637223315894488322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195133641) 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 15 ways as a sum of consecutive naturals, for example, 1715650 + ... + 1716928.

It is an arithmetic number, because the mean of its divisors is an integer number (146099200).

Almost surely, 22195133631 is an apocalyptic number.

2195133631 is a deficient number, since it is larger than the sum of its proper divisors (142453569).

2195133631 is a wasteful number, since it uses less digits than its factorization.

2195133631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278.

The product of its digits is 14580, while the sum is 34.

The square root of 2195133631 is about 46852.2532115586. The cubic root of 2195133631 is about 1299.6317755921.

The spelling of 2195133631 in words is "two billion, one hundred ninety-five million, one hundred thirty-three thousand, six hundred thirty-one".

Divisors: 1 19 103 877 1279 1957 16663 24301 90331 131737 1121683 1716289 2503003 21311977 115533349 2195133631