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214731107 = 449478243
BaseRepresentation
bin11001100110010…
…00100101100011
3112222001110200222
430303020211203
5414432343412
633150233255
75215120133
oct1463104543
9488043628
10214731107
11100234728
125bab582b
1335644436
1420738ac3
1513cb9072
hexccc8963

214731107 has 4 divisors (see below), whose sum is σ = 215209800. Its totient is φ = 214252416.

The previous prime is 214731073. The next prime is 214731119. The reversal of 214731107 is 701137412.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 214731107 - 28 = 214730851 is a prime.

It is a super-2 number, since 2×2147311072 = 92218896626890898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214731137) 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, 238673 + ... + 239570.

It is an arithmetic number, because the mean of its divisors is an integer number (53802450).

Almost surely, 2214731107 is an apocalyptic number.

214731107 is a deficient number, since it is larger than the sum of its proper divisors (478693).

214731107 is an equidigital number, since it uses as much as digits as its factorization.

214731107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478692.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 214731107 is about 14653.7062547330. The cubic root of 214731107 is about 598.8227908825.

Adding to 214731107 its reverse (701137412), we get a palindrome (915868519).

The spelling of 214731107 in words is "two hundred fourteen million, seven hundred thirty-one thousand, one hundred seven".

Divisors: 1 449 478243 214731107