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42038317 = 1910321481
BaseRepresentation
bin1010000001011…
…1010000101101
32221002202201201
42200113100231
541230211232
64101005501
71020214456
oct240272055
987082651
1042038317
1121803012
12120b3891
13892b559
14582412d
153a55be7
hex281742d

42038317 has 8 divisors (see below), whose sum is σ = 44682560. Its totient is φ = 39437280.

The previous prime is 42038309. The next prime is 42038323. The reversal of 42038317 is 71383024.

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 42038317 - 23 = 42038309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42038377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8784 + ... + 12697.

It is an arithmetic number, because the mean of its divisors is an integer number (5585320).

Almost surely, 242038317 is an apocalyptic number.

It is an amenable number.

42038317 is a deficient number, since it is larger than the sum of its proper divisors (2644243).

42038317 is a wasteful number, since it uses less digits than its factorization.

42038317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21603.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42038317 is about 6483.6962451984. The cubic root of 42038317 is about 347.7083394328.

The spelling of 42038317 in words is "forty-two million, thirty-eight thousand, three hundred seventeen".

Divisors: 1 19 103 1957 21481 408139 2212543 42038317