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387130 = 2538713
BaseRepresentation
bin1011110100000111010
3201200001011
41132200322
544342010
612144134
73201442
oct1364072
9650034
10387130
11244947
1216804a
13107293
14a1122
1579a8a
hex5e83a

387130 has 8 divisors (see below), whose sum is σ = 696852. Its totient is φ = 154848.

The previous prime is 387109. The next prime is 387137. The reversal of 387130 is 31783.

It can be written as a sum of positive squares in 2 ways, for example, as 383161 + 3969 = 619^2 + 63^2 .

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

It is not an unprimeable number, because it can be changed into a prime (387137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19347 + ... + 19366.

2387130 is an apocalyptic number.

387130 is a deficient number, since it is larger than the sum of its proper divisors (309722).

387130 is a wasteful number, since it uses less digits than its factorization.

387130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38720.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 387130 is about 622.1977177714. The cubic root of 387130 is about 72.8817752342.

The spelling of 387130 in words is "three hundred eighty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 38713 77426 193565 387130