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387061 = 894349
BaseRepresentation
bin1011110011111110101
3201122221121
41132133311
544341221
612143541
73201313
oct1363765
9648847
10387061
11244894
12167bb1
1310723c
14a10b3
1579a41
hex5e7f5

387061 has 4 divisors (see below), whose sum is σ = 391500. Its totient is φ = 382624.

The previous prime is 387047. The next prime is 387071. The reversal of 387061 is 160783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 352836 = 185^2 + 594^2 .

It is a cyclic number.

It is not a de Polignac number, because 387061 - 29 = 386549 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 (387031) 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, 2086 + ... + 2263.

It is an arithmetic number, because the mean of its divisors is an integer number (97875).

2387061 is an apocalyptic number.

It is an amenable number.

387061 is a deficient number, since it is larger than the sum of its proper divisors (4439).

387061 is an equidigital number, since it uses as much as digits as its factorization.

387061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 387061 is about 622.1422666883. The cubic root of 387061 is about 72.8774449564.

The spelling of 387061 in words is "three hundred eighty-seven thousand, sixty-one".

Divisors: 1 89 4349 387061