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1389054 = 23376257
BaseRepresentation
bin101010011000111111110
32121120102110
411103013332
5323422204
645434450
714543502
oct5230776
92546373
101389054
11869687
1256ba26
13398334
14282302
151c6889
hex1531fe

1389054 has 16 divisors (see below), whose sum is σ = 2853648. Its totient is φ = 450432.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389054 is 4509831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2907 + ... + 3350.

It is an arithmetic number, because the mean of its divisors is an integer number (178353).

21389054 is an apocalyptic number.

1389054 is an abundant number, since it is smaller than the sum of its proper divisors (1464594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1389054 is a wasteful number, since it uses less digits than its factorization.

1389054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1389054 is about 1178.5813506076. The cubic root of 1389054 is about 111.5765794046.

The spelling of 1389054 in words is "one million, three hundred eighty-nine thousand, fifty-four".

Divisors: 1 2 3 6 37 74 111 222 6257 12514 18771 37542 231509 463018 694527 1389054