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387070 = 2538707
BaseRepresentation
bin1011110011111111110
3201122221221
41132133332
544341240
612143554
73201325
oct1363776
9648857
10387070
112448a2
12167bba
13107248
14a10bc
1579a4a
hex5e7fe

387070 has 8 divisors (see below), whose sum is σ = 696744. Its totient is φ = 154824.

The previous prime is 387047. The next prime is 387071. The reversal of 387070 is 70783.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387071) by changing a digit.

387070 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19344 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (87093).

2387070 is an apocalyptic number.

387070 is a deficient number, since it is larger than the sum of its proper divisors (309674).

387070 is a wasteful number, since it uses less digits than its factorization.

387070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38714.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 387070 is about 622.1494997185. The cubic root of 387070 is about 72.8780098044.

The spelling of 387070 in words is "three hundred eighty-seven thousand, seventy".

Divisors: 1 2 5 10 38707 77414 193535 387070