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1383025 = 52721129
BaseRepresentation
bin101010001101001110001
32121021011011
411101221301
5323224100
645350521
714520100
oct5215161
92537134
101383025
118650a6
12568441
13395677
14280037
151c4bba
hex151a71

1383025 has 18 divisors (see below), whose sum is σ = 1996710. Its totient is φ = 947520.

The previous prime is 1382999. The next prime is 1383037. The reversal of 1383025 is 5203831.

It can be written as a sum of positive squares in 3 ways, for example, as 49 + 1382976 = 7^2 + 1176^2 .

It is not a de Polignac number, because 1383025 - 213 = 1374833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1382987 and 1383005.

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, 661 + ... + 1789.

21383025 is an apocalyptic number.

It is an amenable number.

1383025 is a deficient number, since it is larger than the sum of its proper divisors (613685).

1383025 is a wasteful number, since it uses less digits than its factorization.

1383025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1383025 is about 1176.0208331488. The cubic root of 1383025 is about 111.4149176314.

Adding to 1383025 its reverse (5203831), we get a palindrome (6586856).

It can be divided in two parts, 13 and 83025, that added together give a palindrome (83038).

The spelling of 1383025 in words is "one million, three hundred eighty-three thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1129 1225 5645 7903 28225 39515 55321 197575 276605 1383025