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42041983 = 317917167
BaseRepresentation
bin1010000001100…
…0001001111111
32221002221202111
42200120021333
541230320413
64101034451
71020231244
oct240301177
987087674
1042041983
1121805845
12120b5a27
138930119
1458255cb
153a56d3d
hex281827f

42041983 has 8 divisors (see below), whose sum is σ = 43950080. Its totient is φ = 40168440.

The previous prime is 42041981. The next prime is 42042023. The reversal of 42041983 is 38914024.

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 42041983 - 21 = 42041981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42041981) 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, 6135 + ... + 11032.

It is an arithmetic number, because the mean of its divisors is an integer number (5493760).

Almost surely, 242041983 is an apocalyptic number.

42041983 is a deficient number, since it is larger than the sum of its proper divisors (1908097).

42041983 is a wasteful number, since it uses less digits than its factorization.

42041983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17277.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42041983 is about 6483.9789481460. The cubic root of 42041983 is about 347.7184465749.

The spelling of 42041983 in words is "forty-two million, forty-one thousand, nine hundred eighty-three".

Divisors: 1 31 79 2449 17167 532177 1356193 42041983