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42748583 = 199214817
BaseRepresentation
bin1010001100010…
…0101010100111
32222102212000212
42203010222213
541420423313
64124130035
71026233303
oct243045247
988385025
1042748583
1122148709
121239691b
138b19927
14596ad03
153b463a8
hex28c4aa7

42748583 has 4 divisors (see below), whose sum is σ = 42963600. Its totient is φ = 42533568.

The previous prime is 42748577. The next prime is 42748619. The reversal of 42748583 is 38584724.

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

It is a cyclic number.

It is not a de Polignac number, because 42748583 - 24 = 42748567 is a prime.

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 42748583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42748483) 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, 107210 + ... + 107607.

It is an arithmetic number, because the mean of its divisors is an integer number (10740900).

Almost surely, 242748583 is an apocalyptic number.

42748583 is a deficient number, since it is larger than the sum of its proper divisors (215017).

42748583 is a wasteful number, since it uses less digits than its factorization.

42748583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215016.

The product of its digits is 215040, while the sum is 41.

The square root of 42748583 is about 6538.2400537148. The cubic root of 42748583 is about 349.6556695216.

The spelling of 42748583 in words is "forty-two million, seven hundred forty-eight thousand, five hundred eighty-three".

Divisors: 1 199 214817 42748583