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42974067 = 319753931
BaseRepresentation
bin1010001111101…
…1101101110011
32222212022100010
42203323231303
542000132232
64133030003
71031162553
oct243735563
988768303
1042974067
1122292064
1212485303
138b98456
1459c9163
153b8d0cc
hex28fbb73

42974067 has 8 divisors (see below), whose sum is σ = 60314560. Its totient is φ = 27141480.

The previous prime is 42974047. The next prime is 42974069. The reversal of 42974067 is 76047924.

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

It is not a de Polignac number, because 42974067 - 26 = 42974003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42974069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376909 + ... + 377022.

It is an arithmetic number, because the mean of its divisors is an integer number (7539320).

Almost surely, 242974067 is an apocalyptic number.

42974067 is a deficient number, since it is larger than the sum of its proper divisors (17340493).

42974067 is a wasteful number, since it uses less digits than its factorization.

42974067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753953.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 42974067 is about 6555.4608533649. The cubic root of 42974067 is about 350.2693627112.

The spelling of 42974067 in words is "forty-two million, nine hundred seventy-four thousand, sixty-seven".

Divisors: 1 3 19 57 753931 2261793 14324689 42974067