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42754771 = 43994297
BaseRepresentation
bin1010001100011…
…0001011010011
32222110011112001
42203012023103
541421123041
64124214431
71026260323
oct243061323
988404461
1042754771
1122152324
121239a417
138b1c6a7
14596d283
153b48131
hex28c62d3

42754771 has 4 divisors (see below), whose sum is σ = 43749112. Its totient is φ = 41760432.

The previous prime is 42754757. The next prime is 42754781. The reversal of 42754771 is 17745724.

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 42754771 - 213 = 42746579 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 42754771.

It is not an unprimeable number, because it can be changed into a prime (42754781) 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, 497106 + ... + 497191.

It is an arithmetic number, because the mean of its divisors is an integer number (10937278).

Almost surely, 242754771 is an apocalyptic number.

42754771 is a deficient number, since it is larger than the sum of its proper divisors (994341).

42754771 is an equidigital number, since it uses as much as digits as its factorization.

42754771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994340.

The product of its digits is 54880, while the sum is 37.

The square root of 42754771 is about 6538.7132526209. The cubic root of 42754771 is about 349.6725399824.

The spelling of 42754771 in words is "forty-two million, seven hundred fifty-four thousand, seven hundred seventy-one".

Divisors: 1 43 994297 42754771