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380286687 = 31111523839
BaseRepresentation
bin10110101010101…
…011011011011111
3222111120120021010
4112222223123133
51234323133222
6101422510303
712265245354
oct2652533337
9874516233
10380286687
11185731020
12a7435393
1360a2b811
143871262b
15235bc80c
hex16aab6df

380286687 has 8 divisors (see below), whose sum is σ = 553144320. Its totient is φ = 230476760.

The previous prime is 380286677. The next prime is 380286689. The reversal of 380286687 is 786682083.

It is a happy number.

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 380286687 - 24 = 380286671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380286689) 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, 5761887 + ... + 5761952.

It is an arithmetic number, because the mean of its divisors is an integer number (69143040).

Almost surely, 2380286687 is an apocalyptic number.

380286687 is a deficient number, since it is larger than the sum of its proper divisors (172857633).

380286687 is a wasteful number, since it uses less digits than its factorization.

380286687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11523853.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 380286687 is about 19500.9406696190. The cubic root of 380286687 is about 724.4977493273.

The spelling of 380286687 in words is "three hundred eighty million, two hundred eighty-six thousand, six hundred eighty-seven".

Divisors: 1 3 11 33 11523839 34571517 126762229 380286687