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42741793 = 51898237
BaseRepresentation
bin1010001100001…
…1000000100001
32222102111201101
42203003000201
541420214133
64124034401
71026204433
oct243030041
988374641
1042741793
11221435a6
1212392a01
138b16803
145968653
153b4437d
hex28c3021

42741793 has 4 divisors (see below), whose sum is σ = 42755220. Its totient is φ = 42728368.

The previous prime is 42741781. The next prime is 42741821. The reversal of 42741793 is 39714724.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30547729 + 12194064 = 5527^2 + 3492^2 .

It is a cyclic number.

It is not a de Polignac number, because 42741793 - 25 = 42741761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42741703) 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, 1071 + ... + 9307.

It is an arithmetic number, because the mean of its divisors is an integer number (10688805).

Almost surely, 242741793 is an apocalyptic number.

It is an amenable number.

42741793 is a deficient number, since it is larger than the sum of its proper divisors (13427).

42741793 is an equidigital number, since it uses as much as digits as its factorization.

42741793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426.

The product of its digits is 42336, while the sum is 37.

The square root of 42741793 is about 6537.7207802108. The cubic root of 42741793 is about 349.6371559433.

It can be divided in two parts, 42741 and 793, that added together give a palindrome (43534).

The spelling of 42741793 in words is "forty-two million, seven hundred forty-one thousand, seven hundred ninety-three".

Divisors: 1 5189 8237 42741793