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214806812 = 221131157483
BaseRepresentation
bin11001100110110…
…11000100011100
3112222012022112212
430303123010130
5414442304222
633152015552
75215553633
oct1463330434
9488168485
10214806812
111002865a0
125bb315b8
133566ca2c
142075851a
1513cd16e2
hexccdb11c

214806812 has 24 divisors (see below), whose sum is σ = 423316992. Its totient is φ = 94489200.

The previous prime is 214806811. The next prime is 214806817. The reversal of 214806812 is 218608412.

It is a happy number.

214806812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2148068122 = 92283932963206688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214806811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77378 + ... + 80105.

It is an arithmetic number, because the mean of its divisors is an integer number (17638208).

Almost surely, 2214806812 is an apocalyptic number.

214806812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

214806812 is a deficient number, since it is larger than the sum of its proper divisors (208510180).

214806812 is a wasteful number, since it uses less digits than its factorization.

214806812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157529 (or 157527 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 214806812 is about 14656.2891619946. The cubic root of 214806812 is about 598.8931557114.

The spelling of 214806812 in words is "two hundred fourteen million, eight hundred six thousand, eight hundred twelve".

Divisors: 1 2 4 11 22 31 44 62 124 341 682 1364 157483 314966 629932 1732313 3464626 4881973 6929252 9763946 19527892 53701703 107403406 214806812