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214511245 = 51318118233
BaseRepresentation
bin11001100100100…
…10111010001101
3112221122022002221
430302102322031
5414403324440
633141415341
75213213134
oct1462227215
9487568087
10214511245
111000a4523
125ba0a551
1335598340
14206bc91b
1513c73d4a
hexcc92e8d

214511245 has 16 divisors (see below), whose sum is σ = 278761392. Its totient is φ = 157524480.

The previous prime is 214511239. The next prime is 214511249. The reversal of 214511245 is 542115412.

214511245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 56280004 + 158231241 = 7502^2 + 12579^2 .

It is not a de Polignac number, because 214511245 - 225 = 180956813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214511249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2649 + ... + 20881.

It is an arithmetic number, because the mean of its divisors is an integer number (17422587).

Almost surely, 2214511245 is an apocalyptic number.

It is an amenable number.

214511245 is a deficient number, since it is larger than the sum of its proper divisors (64250147).

214511245 is a wasteful number, since it uses less digits than its factorization.

214511245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18432.

The product of its digits is 1600, while the sum is 25.

The square root of 214511245 is about 14646.2024088157. The cubic root of 214511245 is about 598.6183439680.

Adding to 214511245 its reverse (542115412), we get a palindrome (756626657).

The spelling of 214511245 in words is "two hundred fourteen million, five hundred eleven thousand, two hundred forty-five".

Divisors: 1 5 13 65 181 905 2353 11765 18233 91165 237029 1185145 3300173 16500865 42902249 214511245