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380965 = 5135861
BaseRepresentation
bin1011101000000100101
3201100120211
41131000211
544142330
612055421
73144454
oct1350045
9640524
10380965
11240252
12164571
13104530
149cb9b
1577d2a
hex5d025

380965 has 8 divisors (see below), whose sum is σ = 492408. Its totient is φ = 281280.

The previous prime is 380957. The next prime is 380971. The reversal of 380965 is 569083.

It can be written as a sum of positive squares in 4 ways, for example, as 3969 + 376996 = 63^2 + 614^2 .

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

It is not a de Polignac number, because 380965 - 23 = 380957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (61551).

2380965 is an apocalyptic number.

It is an amenable number.

380965 is a deficient number, since it is larger than the sum of its proper divisors (111443).

380965 is a wasteful number, since it uses less digits than its factorization.

380965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5879.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 380965 is about 617.2236223606. The cubic root of 380965 is about 72.4928252908.

The spelling of 380965 in words is "three hundred eighty thousand, nine hundred sixty-five".

Divisors: 1 5 13 65 5861 29305 76193 380965