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14994989 = 92916141
BaseRepresentation
bin111001001100…
…111000101101
31001012211020222
4321030320231
512314314424
61253221125
7241312112
oct71147055
931184228
1014994989
118511a59
1250317a5
133150299
141dc4909
1514b2e5e
hexe4ce2d

14994989 has 4 divisors (see below), whose sum is σ = 15012060. Its totient is φ = 14977920.

The previous prime is 14994977. The next prime is 14995007. The reversal of 14994989 is 98949941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98949941 = 797124153.

It can be written as a sum of positive squares in 2 ways, for example, as 2449225 + 12545764 = 1565^2 + 3542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14994989 is a prime.

It is a super-2 number, since 2×149949892 = 449699390220242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14994989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14994949) 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 3 ways as a sum of consecutive naturals, for example, 7142 + ... + 8999.

It is an arithmetic number, because the mean of its divisors is an integer number (3753015).

Almost surely, 214994989 is an apocalyptic number.

It is an amenable number.

14994989 is a deficient number, since it is larger than the sum of its proper divisors (17071).

14994989 is an equidigital number, since it uses as much as digits as its factorization.

14994989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17070.

The product of its digits is 839808, while the sum is 53.

The square root of 14994989 is about 3872.3363748518. The cubic root of 14994989 is about 246.5937417328.

The spelling of 14994989 in words is "fourteen million, nine hundred ninety-four thousand, nine hundred eighty-nine".

Divisors: 1 929 16141 14994989