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14445577 = 37390421
BaseRepresentation
bin110111000110…
…110000001001
31000011220121101
4313012300021
512144224302
61233341401
7233533246
oct67066011
930156541
1014445577
1181771a3
124a07861
132cba1a3
141cc05cd
151405287
hexdc6c09

14445577 has 4 divisors (see below), whose sum is σ = 14836036. Its totient is φ = 14055120.

The previous prime is 14445553. The next prime is 14445583. The reversal of 14445577 is 77554441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7284601 + 7160976 = 2699^2 + 2676^2 .

It is a cyclic number.

It is not a de Polignac number, because 14445577 - 219 = 13921289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 390421 = 14445577 / (1 + 4 + 4 + 4 + 5 + 5 + 7 + 7).

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (14445517) 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 3 ways as a sum of consecutive naturals, for example, 195174 + ... + 195247.

It is an arithmetic number, because the mean of its divisors is an integer number (3709009).

Almost surely, 214445577 is an apocalyptic number.

It is an amenable number.

14445577 is a deficient number, since it is larger than the sum of its proper divisors (390459).

14445577 is an equidigital number, since it uses as much as digits as its factorization.

14445577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390458.

The product of its digits is 78400, while the sum is 37.

The square root of 14445577 is about 3800.7337449498. The cubic root of 14445577 is about 243.5444840564.

It can be divided in two parts, 1444 and 5577, that added together give a triangular number (7021 = T118).

The spelling of 14445577 in words is "fourteen million, four hundred forty-five thousand, five hundred seventy-seven".

Divisors: 1 37 390421 14445577