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214466780 = 22511974849
BaseRepresentation
bin11001100100010…
…00000011011100
3112221120001010002
430302020003130
5414400414110
633140433432
75212636403
oct1462100334
9487501102
10214466780
11100074080
125b9a8878
1335581028
14206aa63a
1513c65aa5
hexcc880dc

214466780 has 24 divisors (see below), whose sum is σ = 491324400. Its totient is φ = 77987840.

The previous prime is 214466767. The next prime is 214466783. The reversal of 214466780 is 87664412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214466783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487205 + ... + 487644.

It is an arithmetic number, because the mean of its divisors is an integer number (20471850).

Almost surely, 2214466780 is an apocalyptic number.

214466780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214466780 is an abundant number, since it is smaller than the sum of its proper divisors (276857620).

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

214466780 is a wasteful number, since it uses less digits than its factorization.

214466780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974869 (or 974867 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 214466780 is about 14644.6843598625. The cubic root of 214466780 is about 598.5769795413.

The spelling of 214466780 in words is "two hundred fourteen million, four hundred sixty-six thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 974849 1949698 3899396 4874245 9748490 10723339 19496980 21446678 42893356 53616695 107233390 214466780