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13423125 = 3547159
BaseRepresentation
bin110011001101…
…001000010101
3221020222001210
4303031020111
511414020000
61155412033
7222044322
oct63151025
927228053
1013423125
117638aa1
1245b4019
132a1c9a1
141ad5b49
1512a2350
hexccd215

13423125 has 20 divisors (see below), whose sum is σ = 22367840. Its totient is φ = 7158000.

The previous prime is 13423117. The next prime is 13423199. The reversal of 13423125 is 52132431.

It is not a de Polignac number, because 13423125 - 23 = 13423117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1705 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (1118392).

Almost surely, 213423125 is an apocalyptic number.

13423125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13423125 is a deficient number, since it is larger than the sum of its proper divisors (8944715).

13423125 is an frugal number, since it uses more digits than its factorization.

13423125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182 (or 7167 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 13423125 is about 3663.7583162649. The cubic root of 13423125 is about 237.6573288129.

Adding to 13423125 its reverse (52132431), we get a palindrome (65555556).

The spelling of 13423125 in words is "thirteen million, four hundred twenty-three thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 625 1875 7159 21477 35795 107385 178975 536925 894875 2684625 4474375 13423125