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14981445 = 325332921
BaseRepresentation
bin111001001001…
…100101000101
31001012010200100
4321021211011
512313401240
61253034313
7241224453
oct71114505
931163610
1014981445
118502866
125025999
13314707b
141dbd9d3
1514ade30
hexe49945

14981445 has 12 divisors (see below), whose sum is σ = 25967916. Its totient is φ = 7990080.

The previous prime is 14981423. The next prime is 14981479. The reversal of 14981445 is 54418941.

It can be written as a sum of positive squares in 2 ways, for example, as 8661249 + 6320196 = 2943^2 + 2514^2 .

It is not a de Polignac number, because 14981445 - 25 = 14981413 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 11 ways as a sum of consecutive naturals, for example, 166416 + ... + 166505.

It is an arithmetic number, because the mean of its divisors is an integer number (2163993).

Almost surely, 214981445 is an apocalyptic number.

14981445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14981445 is a deficient number, since it is larger than the sum of its proper divisors (10986471).

14981445 is a wasteful number, since it uses less digits than its factorization.

14981445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332932 (or 332929 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 14981445 is about 3870.5871647594. The cubic root of 14981445 is about 246.5194753294.

The spelling of 14981445 in words is "fourteen million, nine hundred eighty-one thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 45 332921 998763 1664605 2996289 4993815 14981445