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42044215 = 531271253
BaseRepresentation
bin1010000001100…
…0101100110111
32221010001211011
42200120230313
541230403330
64101053051
71020240613
oct240305467
987101734
1042044215
1121807494
12120b7187
138931145
145826343
153a5782a
hex2818b37

42044215 has 8 divisors (see below), whose sum is σ = 52080768. Its totient is φ = 32550240.

The previous prime is 42044203. The next prime is 42044237. The reversal of 42044215 is 51244024.

It is a happy number.

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

It is not a de Polignac number, because 42044215 - 25 = 42044183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135472 + ... + 135781.

It is an arithmetic number, because the mean of its divisors is an integer number (6510096).

Almost surely, 242044215 is an apocalyptic number.

42044215 is a deficient number, since it is larger than the sum of its proper divisors (10036553).

42044215 is a wasteful number, since it uses less digits than its factorization.

42044215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271289.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42044215 is about 6484.1510623982. The cubic root of 42044215 is about 347.7245998989.

Adding to 42044215 its reverse (51244024), we get a palindrome (93288239).

The spelling of 42044215 in words is "forty-two million, forty-four thousand, two hundred fifteen".

Divisors: 1 5 31 155 271253 1356265 8408843 42044215