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380825 = 5215233
BaseRepresentation
bin1011100111110011001
3201100101122
41130332121
544141300
612055025
73144164
oct1347631
9640348
10380825
11240135
12164475
13104453
149cadb
1577c85
hex5cf99

380825 has 6 divisors (see below), whose sum is σ = 472254. Its totient is φ = 304640.

The previous prime is 380819. The next prime is 380837. The reversal of 380825 is 528083.

It can be written as a sum of positive squares in 3 ways, for example, as 1369 + 379456 = 37^2 + 616^2 .

It is not a de Polignac number, because 380825 - 212 = 376729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380794 and 380803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7592 + ... + 7641.

It is an arithmetic number, because the mean of its divisors is an integer number (78709).

2380825 is an apocalyptic number.

It is an amenable number.

380825 is a deficient number, since it is larger than the sum of its proper divisors (91429).

380825 is a wasteful number, since it uses less digits than its factorization.

380825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15243 (or 15238 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 380825 is about 617.1102008556. The cubic root of 380825 is about 72.4839441259.

The spelling of 380825 in words is "three hundred eighty thousand, eight hundred twenty-five".

Divisors: 1 5 25 15233 76165 380825