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14989189 = 17937941
BaseRepresentation
bin111001001011…
…011110000101
31001012112022011
4321023132011
512314123224
61253134221
7241256155
oct71133605
931175264
1014989189
118508666
12502a371
13314a757
141dc2765
1514b1394
hexe4b785

14989189 has 8 divisors (see below), whose sum is σ = 15904728. Its totient is φ = 14077440.

The previous prime is 14989171. The next prime is 14989199. The reversal of 14989189 is 98198941.

It can be written as a sum of positive squares in 4 ways, for example, as 1520289 + 13468900 = 1233^2 + 3670^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14989189 - 27 = 14989061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14989109) 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, 15459 + ... + 16399.

It is an arithmetic number, because the mean of its divisors is an integer number (1988091).

Almost surely, 214989189 is an apocalyptic number.

It is an amenable number.

14989189 is a deficient number, since it is larger than the sum of its proper divisors (915539).

14989189 is an equidigital number, since it uses as much as digits as its factorization.

14989189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its digits is 186624, while the sum is 49.

The square root of 14989189 is about 3871.5874005374. The cubic root of 14989189 is about 246.5619438180.

The spelling of 14989189 in words is "fourteen million, nine hundred eighty-nine thousand, one hundred eighty-nine".

Divisors: 1 17 937 941 15929 15997 881717 14989189