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2643404133 = 39715757859
BaseRepresentation
bin1001110110001111…
…0010010101100101
320211020000211202210
42131203302111211
520403202413013
61114145154033
7122335364406
oct23543622545
96736024683
102643404133
111137150717
1261932b919
1333185c076
141b10dd9ad
15107105cc3
hex9d8f2565

2643404133 has 16 divisors (see below), whose sum is σ = 3583616960. Its totient is φ = 1732962816.

The previous prime is 2643404129. The next prime is 2643404149. The reversal of 2643404133 is 3314043462.

It is not a de Polignac number, because 2643404133 - 22 = 2643404129 is a prime.

It is a super-2 number, since 2×26434041332 = 13975170820722963378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643404133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643405133) 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, 16758 + ... + 74616.

It is an arithmetic number, because the mean of its divisors is an integer number (223976060).

Almost surely, 22643404133 is an apocalyptic number.

It is an amenable number.

2643404133 is a deficient number, since it is larger than the sum of its proper divisors (940212827).

2643404133 is a wasteful number, since it uses less digits than its factorization.

2643404133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58116.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 2643404133 is about 51414.0460671984. The cubic root of 2643404133 is about 1382.6784312557.

Adding to 2643404133 its reverse (3314043462), we get a palindrome (5957447595).

The spelling of 2643404133 in words is "two billion, six hundred forty-three million, four hundred four thousand, one hundred thirty-three".

Divisors: 1 3 97 157 291 471 15229 45687 57859 173577 5612323 9083863 16836969 27251589 881134711 2643404133