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214021444 = 22713587971
BaseRepresentation
bin11001100000110…
…11010101000100
3112220201102020011
430300123111010
5414242141234
633123120004
75206103140
oct1460332504
9486642204
10214021444
11aa89a52a
125b813004
1335456410
14205d2220
1513bc8b64
hexcc1b544

214021444 has 24 divisors (see below), whose sum is σ = 460970048. Its totient is φ = 84667680.

The previous prime is 214021433. The next prime is 214021481. The reversal of 214021444 is 444120412.

214021444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293622 + ... + 294349.

Almost surely, 2214021444 is an apocalyptic number.

It is an amenable number.

214021444 is an abundant number, since it is smaller than the sum of its proper divisors (246948604).

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

214021444 is a wasteful number, since it uses less digits than its factorization.

214021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587995 (or 587993 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 214021444 is about 14629.4717607985. The cubic root of 214021444 is about 598.1623813791.

Adding to 214021444 its reverse (444120412), we get a palindrome (658141856).

The spelling of 214021444 in words is "two hundred fourteen million, twenty-one thousand, four hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 587971 1175942 2351884 4115797 7643623 8231594 15287246 16463188 30574492 53505361 107010722 214021444