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5142783 = 31714261
BaseRepresentation
bin10011100111100011111111
3100200021120110
4103213203333
52304032113
6302121103
761466352
oct23474377
910607513
105142783
1129a2938
121880193
1310b0a89
1497c299
156b8bc3
hex4e78ff

5142783 has 4 divisors (see below), whose sum is σ = 6857048. Its totient is φ = 3428520.

The previous prime is 5142779. The next prime is 5142793. The reversal of 5142783 is 3872415.

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

It is not a de Polignac number, because 5142783 - 22 = 5142779 is a prime.

It is a D-number.

It is a Duffinian number.

5142783 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142713) 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, 857128 + ... + 857133.

It is an arithmetic number, because the mean of its divisors is an integer number (1714262).

Almost surely, 25142783 is an apocalyptic number.

5142783 is a deficient number, since it is larger than the sum of its proper divisors (1714265).

5142783 is a wasteful number, since it uses less digits than its factorization.

5142783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714264.

The product of its digits is 6720, while the sum is 30.

The square root of 5142783 is about 2267.7704910330. The cubic root of 5142783 is about 172.6100453043.

The spelling of 5142783 in words is "five million, one hundred forty-two thousand, seven hundred eighty-three".

Divisors: 1 3 1714261 5142783