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213364180 = 22567159227
BaseRepresentation
bin11001011011110…
…10110111010100
3112212111000122001
430231322313110
5414110123210
633101045044
75200365001
oct1455726724
9485430561
10213364180
11aa490737
125b556784
13352861c3
14204a08a8
1513ae903a
hexcb7add4

213364180 has 24 divisors (see below), whose sum is σ = 454755168. Its totient is φ = 84071328.

The previous prime is 213364139. The next prime is 213364201. The reversal of 213364180 is 81463312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78274 + ... + 80953.

It is an arithmetic number, because the mean of its divisors is an integer number (18948132).

Almost surely, 2213364180 is an apocalyptic number.

213364180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213364180 is an abundant number, since it is smaller than the sum of its proper divisors (241390988).

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

213364180 is a wasteful number, since it uses less digits than its factorization.

213364180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159303 (or 159301 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 213364180 is about 14606.9907920831. The cubic root of 213364180 is about 597.5494307360.

The spelling of 213364180 in words is "two hundred thirteen million, three hundred sixty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 159227 318454 636908 796135 1592270 3184540 10668209 21336418 42672836 53341045 106682090 213364180