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1382909 = 1131039
BaseRepresentation
bin101010001100111111101
32121020222212
411101213331
5323223114
645350205
714516543
oct5214775
92536885
101382909
11865000
12568365
133955b8
1427dd93
151c4b3e
hex1519fd

1382909 has 8 divisors (see below), whose sum is σ = 1522560. Its totient is φ = 1255980.

The previous prime is 1382893. The next prime is 1382939. The reversal of 1382909 is 9092831.

It is not a de Polignac number, because 1382909 - 24 = 1382893 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (190320).

21382909 is an apocalyptic number.

It is an amenable number.

1382909 is a deficient number, since it is larger than the sum of its proper divisors (139651).

1382909 is an equidigital number, since it uses as much as digits as its factorization.

1382909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1382909 is about 1175.9715132604. The cubic root of 1382909 is about 111.4118026017.

The spelling of 1382909 in words is "one million, three hundred eighty-two thousand, nine hundred nine".

Divisors: 1 11 121 1039 1331 11429 125719 1382909