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214240442 = 21331265807
BaseRepresentation
bin11001100010100…
…00110010111010
3112221010112122012
430301100302322
5414321143232
633131525522
75211004463
oct1461206272
9487115565
10214240442
11aaa2a019
125b8b98a2
1335501cc0
142064bd6a
1513c1d9b2
hexcc50cba

214240442 has 16 divisors (see below), whose sum is σ = 357245952. Its totient is φ = 95690160.

The previous prime is 214240421. The next prime is 214240483. The reversal of 214240442 is 244042412.

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 7 ways as a sum of consecutive naturals, for example, 132098 + ... + 133709.

It is an arithmetic number, because the mean of its divisors is an integer number (22327872).

Almost surely, 2214240442 is an apocalyptic number.

214240442 is a deficient number, since it is larger than the sum of its proper divisors (143005510).

214240442 is a wasteful number, since it uses less digits than its factorization.

214240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265853.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 214240442 is about 14636.9546696026. The cubic root of 214240442 is about 598.3663355676.

Adding to 214240442 its reverse (244042412), we get a palindrome (458282854).

The spelling of 214240442 in words is "two hundred fourteen million, two hundred forty thousand, four hundred forty-two".

Divisors: 1 2 13 26 31 62 403 806 265807 531614 3455491 6910982 8240017 16480034 107120221 214240442