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42057179 = 238322031
BaseRepresentation
bin1010000001101…
…1110111011011
32221010201121022
42200123313123
541231312204
64101233055
71020323453
oct240336733
987121538
1042057179
11218161aa
121210278b
138937008
14582ad63
153a5b5be
hex281bddb

42057179 has 8 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 39742120.

The previous prime is 42057161. The next prime is 42057181. The reversal of 42057179 is 97175024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42057179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42057109) 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, 9107 + ... + 12924.

It is an arithmetic number, because the mean of its divisors is an integer number (5552064).

Almost surely, 242057179 is an apocalyptic number.

42057179 is a deficient number, since it is larger than the sum of its proper divisors (2359333).

42057179 is a wasteful number, since it uses less digits than its factorization.

42057179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22137.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 42057179 is about 6485.1506536086. The cubic root of 42057179 is about 347.7603355998.

The spelling of 42057179 in words is "forty-two million, fifty-seven thousand, one hundred seventy-nine".

Divisors: 1 23 83 1909 22031 506713 1828573 42057179