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1382425 = 52112457
BaseRepresentation
bin101010001100000011001
32121020022221
411101200121
5323214200
645344041
714515252
oct5214031
92536287
101382425
11864700
12568021
13395305
1427db29
151c491a
hex151819

1382425 has 18 divisors (see below), whose sum is σ = 1888334. Its totient is φ = 1003200.

The previous prime is 1382419. The next prime is 1382449. The reversal of 1382425 is 5242831.

It can be written as a sum of positive squares in 3 ways, for example, as 267289 + 1115136 = 517^2 + 1056^2 .

It is not a de Polignac number, because 1382425 - 25 = 1382393 is a prime.

It is a super-2 number, since 2×13824252 = 3822197761250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1382425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2797 + ... + 3253.

21382425 is an apocalyptic number.

It is an amenable number.

1382425 is a deficient number, since it is larger than the sum of its proper divisors (505909).

1382425 is a wasteful number, since it uses less digits than its factorization.

1382425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 473 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1382425 is about 1175.7657079538. The cubic root of 1382425 is about 111.3988035288.

The spelling of 1382425 in words is "one million, three hundred eighty-two thousand, four hundred twenty-five".

Divisors: 1 5 11 25 55 121 275 457 605 2285 3025 5027 11425 25135 55297 125675 276485 1382425