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42073961 = 197131189
BaseRepresentation
bin1010000001111…
…1111101101001
32221011120121212
42200133331221
541232331321
64101442505
71020423416
oct240377551
987146555
1042073961
1121827876
1212110435
138941847
14583310d
153a6155b
hex281ff69

42073961 has 8 divisors (see below), whose sum is σ = 44913600. Its totient is φ = 39296880.

The previous prime is 42073931. The next prime is 42073979. The reversal of 42073961 is 16937024.

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 42073961 - 26 = 42073897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42073901) 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, 14246 + ... + 16943.

It is an arithmetic number, because the mean of its divisors is an integer number (5614200).

Almost surely, 242073961 is an apocalyptic number.

It is an amenable number.

42073961 is a deficient number, since it is larger than the sum of its proper divisors (2839639).

42073961 is a wasteful number, since it uses less digits than its factorization.

42073961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31279.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 42073961 is about 6486.4444035234. Note that the first 4 decimals coincide. The cubic root of 42073961 is about 347.8065848411.

It can be divided in two parts, 42073 and 961, that added together give a palindrome (43034).

The spelling of 42073961 in words is "forty-two million, seventy-three thousand, nine hundred sixty-one".

Divisors: 1 19 71 1349 31189 592591 2214419 42073961