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212074200 = 233452131953
BaseRepresentation
bin11001010001111…
…11111011011000
3112210001111010000
430220333323120
5413242333300
633013253000
75153413062
oct1450777330
9483044100
10212074200
11a978a538
125b034160
1334c23cc0
1420246732
1513941c00
hexca3fed8

212074200 has 480 divisors, whose sum is σ = 850726800. Its totient is φ = 48522240.

The previous prime is 212074189. The next prime is 212074207. The reversal of 212074200 is 2470212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212074207) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 4001374 + ... + 4001426.

Almost surely, 2212074200 is an apocalyptic number.

212074200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212074200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425363400).

212074200 is an abundant number, since it is smaller than the sum of its proper divisors (638652600).

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

212074200 is a wasteful number, since it uses less digits than its factorization.

212074200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 212074200 is about 14562.7675941079. The cubic root of 212074200 is about 596.3427528662.

The spelling of 212074200 in words is "two hundred twelve million, seventy-four thousand, two hundred".