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214242577 = 1099319489
BaseRepresentation
bin11001100010100…
…01010100010001
3112221010122120021
430301101110101
5414321230302
633131543441
75211013633
oct1461212421
9487118507
10214242577
11aaa3068a
125b8bab81
1335502c73
142064ca53
1513c1e437
hexcc51511

214242577 has 4 divisors (see below), whose sum is σ = 214273060. Its totient is φ = 214212096.

The previous prime is 214242563. The next prime is 214242583. The reversal of 214242577 is 775242412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 198274561 = 3996^2 + 14081^2 .

It is a cyclic number.

It is not a de Polignac number, because 214242577 - 211 = 214240529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214242547) 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, 1249 + ... + 20737.

It is an arithmetic number, because the mean of its divisors is an integer number (53568265).

Almost surely, 2214242577 is an apocalyptic number.

It is an amenable number.

214242577 is a deficient number, since it is larger than the sum of its proper divisors (30483).

214242577 is a wasteful number, since it uses less digits than its factorization.

214242577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30482.

The product of its digits is 31360, while the sum is 34.

The square root of 214242577 is about 14637.0276012584. The cubic root of 214242577 is about 598.3683232220.

Adding to 214242577 its reverse (775242412), we get a palindrome (989484989).

The spelling of 214242577 in words is "two hundred fourteen million, two hundred forty-two thousand, five hundred seventy-seven".

Divisors: 1 10993 19489 214242577