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5142761 = 13395597
BaseRepresentation
bin10011100111100011101001
3100200021112122
4103213203221
52304032021
6302121025
761466321
oct23474351
910607478
105142761
1129a2918
121880175
1310b0a70
1497c281
156b8bab
hex4e78e9

5142761 has 4 divisors (see below), whose sum is σ = 5538372. Its totient is φ = 4747152.

The previous prime is 5142751. The next prime is 5142779. The reversal of 5142761 is 1672415.

5142761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3083536 + 2059225 = 1756^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 5142761 - 222 = 948457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142761.

It is not an unprimeable number, because it can be changed into a prime (5142751) 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 3 ways as a sum of consecutive naturals, for example, 197786 + ... + 197811.

It is an arithmetic number, because the mean of its divisors is an integer number (1384593).

Almost surely, 25142761 is an apocalyptic number.

It is an amenable number.

5142761 is a deficient number, since it is larger than the sum of its proper divisors (395611).

5142761 is a wasteful number, since it uses less digits than its factorization.

5142761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395610.

The product of its digits is 1680, while the sum is 26.

The square root of 5142761 is about 2267.7656404488. The cubic root of 5142761 is about 172.6097991713.

The spelling of 5142761 in words is "five million, one hundred forty-two thousand, seven hundred sixty-one".

Divisors: 1 13 395597 5142761