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214401512 = 23132158581
BaseRepresentation
bin11001100011110…
…00000111101000
3112221102201120202
430301320013220
5414341322022
633135211332
75212245203
oct1461700750
9487381522
10214401512
1110002a036
125b976b48
133555a400
142069093a
1513c51592
hexcc781e8

214401512 has 24 divisors (see below), whose sum is σ = 435307590. Its totient is φ = 98953920.

The previous prime is 214401493. The next prime is 214401521. The reversal of 214401512 is 215104412.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 118243876 + 96157636 = 10874^2 + 9806^2 .

It is a super-2 number, since 2×2144015122 = 91936016695772288, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 77939 + ... + 80642.

Almost surely, 2214401512 is an apocalyptic number.

It is an amenable number.

214401512 is an abundant number, since it is smaller than the sum of its proper divisors (220906078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214401512 is a wasteful number, since it uses less digits than its factorization.

214401512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158613 (or 158596 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 214401512 is about 14642.4558049529. The cubic root of 214401512 is about 598.5162523646.

Adding to 214401512 its reverse (215104412), we get a palindrome (429505924).

The spelling of 214401512 in words is "two hundred fourteen million, four hundred one thousand, five hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 158581 317162 634324 1268648 2061553 4123106 8246212 16492424 26800189 53600378 107200756 214401512