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381743042 = 21009189169
BaseRepresentation
bin10110110000001…
…110111111000010
3222121022120000012
4112300032333002
51240211234132
6101514024522
712313522322
oct2660167702
9877276005
10381743042
1118653621a
12a7a18142
136111b675
14389b1282
15237a90b2
hex16c0efc2

381743042 has 8 divisors (see below), whose sum is σ = 573185100. Its totient is φ = 190681344.

The previous prime is 381743027. The next prime is 381743059. The reversal of 381743042 is 240347183.

It can be written as a sum of positive squares in 2 ways, for example, as 381381841 + 361201 = 19529^2 + 601^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92567 + ... + 96602.

Almost surely, 2381743042 is an apocalyptic number.

381743042 is a deficient number, since it is larger than the sum of its proper divisors (191442058).

381743042 is a wasteful number, since it uses less digits than its factorization.

381743042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190180.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 381743042 is about 19538.2456223685. The cubic root of 381743042 is about 725.4214225299.

The spelling of 381743042 in words is "three hundred eighty-one million, seven hundred forty-three thousand, forty-two".

Divisors: 1 2 1009 2018 189169 378338 190871521 381743042