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1382975 = 521147107
BaseRepresentation
bin101010001101000111111
32121021002022
411101220333
5323223400
645350355
714516666
oct5215077
92537068
101382975
11865060
125683bb
13395639
1427dddd
151c4b85
hex151a3f

1382975 has 24 divisors (see below), whose sum is σ = 1928448. Its totient is φ = 975200.

The previous prime is 1382959. The next prime is 1382977. The reversal of 1382975 is 5792831.

1382975 = 1482 + 1492 + ... + 1942.

1382975 = 23 + 33 + ... + 483.

It is a Cunningham number, because it is equal to 11762-1.

It is not a de Polignac number, because 1382975 - 24 = 1382959 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12872 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (80352).

21382975 is an apocalyptic number.

1382975 is a deficient number, since it is larger than the sum of its proper divisors (545473).

1382975 is a wasteful number, since it uses less digits than its factorization.

1382975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 170 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 1382975 is about 1175.9995748299. Note that the first 3 decimals coincide. The cubic root of 1382975 is about 111.4135749675.

It can be divided in two parts, 138 and 2975, that added together give a palindrome (3113).

The spelling of 1382975 in words is "one million, three hundred eighty-two thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 47 55 107 235 275 517 535 1175 1177 2585 2675 5029 5885 12925 25145 29425 55319 125725 276595 1382975