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42046131 = 343325939
BaseRepresentation
bin1010000001100…
…1001010110011
32221010011110010
42200121022303
541230434011
64101110003
71020246321
oct240311263
987104403
1042046131
1121808976
12120b8303
138931c8a
145826d11
153a581a6
hex28192b3

42046131 has 8 divisors (see below), whose sum is σ = 57365440. Its totient is φ = 27378792.

The previous prime is 42046111. The next prime is 42046187. The reversal of 42046131 is 13164024.

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

It is not a de Polignac number, because 42046131 - 25 = 42046099 is a prime.

It is a super-3 number, since 3×420461313 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42046098 and 42046107.

It is not an unprimeable number, because it can be changed into a prime (42046111) 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, 162841 + ... + 163098.

It is an arithmetic number, because the mean of its divisors is an integer number (7170680).

Almost surely, 242046131 is an apocalyptic number.

42046131 is a deficient number, since it is larger than the sum of its proper divisors (15319309).

42046131 is a wasteful number, since it uses less digits than its factorization.

42046131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325985.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42046131 is about 6484.2988055764. The cubic root of 42046131 is about 347.7298818798.

The spelling of 42046131 in words is "forty-two million, forty-six thousand, one hundred thirty-one".

Divisors: 1 3 43 129 325939 977817 14015377 42046131