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2542111513 = 4754087479
BaseRepresentation
bin1001011110000101…
…1000101100011001
320120011102122102021
42113201120230121
520201240032023
61100130134441
7116665406554
oct22741305431
96504378367
102542111513
111094a57007
125ab421421
133168850c6
141a189369b
15ed29835d
hex97858b19

2542111513 has 4 divisors (see below), whose sum is σ = 2596199040. Its totient is φ = 2488023988.

The previous prime is 2542111511. The next prime is 2542111519. The reversal of 2542111513 is 3151112452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542111513 - 21 = 2542111511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542111511) 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, 27043693 + ... + 27043786.

It is an arithmetic number, because the mean of its divisors is an integer number (649049760).

Almost surely, 22542111513 is an apocalyptic number.

It is an amenable number.

2542111513 is a deficient number, since it is larger than the sum of its proper divisors (54087527).

2542111513 is an equidigital number, since it uses as much as digits as its factorization.

2542111513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54087526.

The product of its digits is 1200, while the sum is 25.

The square root of 2542111513 is about 50419.3565309991. The cubic root of 2542111513 is about 1364.7869647452.

Adding to 2542111513 its reverse (3151112452), we get a palindrome (5693223965).

The spelling of 2542111513 in words is "two billion, five hundred forty-two million, one hundred eleven thousand, five hundred thirteen".

Divisors: 1 47 54087479 2542111513