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42647041 = 316720533
BaseRepresentation
bin1010001010101…
…1111000000001
32222020200202001
42202223320001
541404201131
64122024001
71025331253
oct242537001
988220661
1042647041
1122089398
1212348001
138ab2648
145941cd3
153b26261
hex28abe01

42647041 has 8 divisors (see below), whose sum is σ = 44681984. Its totient is φ = 40653360.

The previous prime is 42647021. The next prime is 42647057. The reversal of 42647041 is 14074624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42647041 - 27 = 42646913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42647021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8190 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (5585248).

Almost surely, 242647041 is an apocalyptic number.

It is an amenable number.

42647041 is a deficient number, since it is larger than the sum of its proper divisors (2034943).

42647041 is a wasteful number, since it uses less digits than its factorization.

42647041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20631.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 42647041 is about 6530.4701974666. The cubic root of 42647041 is about 349.3786008058.

The spelling of 42647041 in words is "forty-two million, six hundred forty-seven thousand, forty-one".

Divisors: 1 31 67 2077 20533 636523 1375711 42647041