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38042181671 = 1325791134673
BaseRepresentation
bin100011011011011111…
…011010000000100111
310122012020002001122112
4203123133122000213
51110402244303141
625250515551235
72514502131434
oct433337320047
9118166061575
1038042181671
111515190216a
1274582bb51b
133783586a90
141bac572b8b
15ec9ba77eb
hex8db7da027

38042181671 has 8 divisors (see below), whose sum is σ = 40984424880. Its totient is φ = 35102212992.

The previous prime is 38042181641. The next prime is 38042181673. The reversal of 38042181671 is 17618124083.

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 38042181671 - 234 = 20862312487 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 (38042181673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533810 + ... + 600863.

It is an arithmetic number, because the mean of its divisors is an integer number (5123053110).

Almost surely, 238042181671 is an apocalyptic number.

38042181671 is a deficient number, since it is larger than the sum of its proper divisors (2942243209).

38042181671 is a wasteful number, since it uses less digits than its factorization.

38042181671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137265.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 38042181671 in words is "thirty-eight billion, forty-two million, one hundred eighty-one thousand, six hundred seventy-one".

Divisors: 1 13 2579 33527 1134673 14750749 2926321667 38042181671