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11438725 = 52538997
BaseRepresentation
bin101011101000…
…101010000101
3210112010222111
4223220222011
510412014400
61045101021
7166141024
oct53505205
923463874
1011438725
1165030a1
1239b7771
1324a669c
14173a8bb
15100e3ba
hexae8a85

11438725 has 24 divisors (see below), whose sum is σ = 14764680. Its totient is φ = 8785920.

The previous prime is 11438717. The next prime is 11438729. The reversal of 11438725 is 52783411.

It can be written as a sum of positive squares in 12 ways, for example, as 3771364 + 7667361 = 1942^2 + 2769^2 .

It is not a de Polignac number, because 11438725 - 23 = 11438717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117877 + ... + 117973.

It is an arithmetic number, because the mean of its divisors is an integer number (615195).

Almost surely, 211438725 is an apocalyptic number.

It is an amenable number.

11438725 is a deficient number, since it is larger than the sum of its proper divisors (3325955).

11438725 is an equidigital number, since it uses as much as digits as its factorization.

11438725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 244 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 11438725 is about 3382.1184189794. The cubic root of 11438725 is about 225.3162630670.

The spelling of 11438725 in words is "eleven million, four hundred thirty-eight thousand, seven hundred twenty-five".

Divisors: 1 5 25 53 89 97 265 445 485 1325 2225 2425 4717 5141 8633 23585 25705 43165 117925 128525 215825 457549 2287745 11438725