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42015841 = 79761879
BaseRepresentation
bin1010000001000…
…1110001100001
32221001121220021
42200101301201
541224001331
64100313441
71020062110
oct240216141
987047807
1042015841
112179813a
12120a2881
13892125a
145819c77
153a4e211
hex2811c61

42015841 has 8 divisors (see below), whose sum is σ = 48513920. Its totient is φ = 35641728.

The previous prime is 42015793. The next prime is 42015851. The reversal of 42015841 is 14851024.

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 42015841 - 29 = 42015329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42015851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30261 + ... + 31618.

It is an arithmetic number, because the mean of its divisors is an integer number (6064240).

Almost surely, 242015841 is an apocalyptic number.

It is an amenable number.

42015841 is a deficient number, since it is larger than the sum of its proper divisors (6498079).

42015841 is an equidigital number, since it uses as much as digits as its factorization.

42015841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61983.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 42015841 is about 6481.9627428735. The cubic root of 42015841 is about 347.6463603750.

Adding to 42015841 its reverse (14851024), we get a palindrome (56866865).

It can be divided in two parts, 420 and 15841, that added together give a palindrome (16261).

The spelling of 42015841 in words is "forty-two million, fifteen thousand, eight hundred forty-one".

Divisors: 1 7 97 679 61879 433153 6002263 42015841