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42179045 = 519942391
BaseRepresentation
bin1010000011100…
…1100111100101
32221100220202212
42200321213211
541244212140
64104013205
71021341656
oct240714745
987326685
1042179045
1121899817
1212161205
13897a61c
14585d52d
153a82765
hex28399e5

42179045 has 8 divisors (see below), whose sum is σ = 50870400. Its totient is φ = 33572880.

The previous prime is 42179029. The next prime is 42179051. The reversal of 42179045 is 54097124.

It is a happy number.

42179045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42179045 - 24 = 42179029 is a prime.

It is a super-2 number, since 2×421790452 = 3558143674224050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20201 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (6358800).

Almost surely, 242179045 is an apocalyptic number.

It is an amenable number.

42179045 is a deficient number, since it is larger than the sum of its proper divisors (8691355).

42179045 is a wasteful number, since it uses less digits than its factorization.

42179045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42595.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 42179045 is about 6494.5396295657. The cubic root of 42179045 is about 348.0959048880.

The spelling of 42179045 in words is "forty-two million, one hundred seventy-nine thousand, forty-five".

Divisors: 1 5 199 995 42391 211955 8435809 42179045