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214894620 = 22375173
BaseRepresentation
bin11001100111100…
…00100000011100
3112222100210000000
430303300200130
5420003111440
633153534300
75216400633
oct1463604034
9488323000
10214894620
11100336566
125bb74390
13356a09a5
142077c51a
1513cec730
hexccf081c

214894620 has 192 divisors, whose sum is σ = 719107200. Its totient is φ = 53934336.

The previous prime is 214894601. The next prime is 214894633. The reversal of 214894620 is 26498412.

214894620 is a `hidden beast` number, since 21 + 4 + 8 + 9 + 4 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 765 × 459 × 612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12640852 + ... + 12640868.

It is an arithmetic number, because the mean of its divisors is an integer number (3745350).

Almost surely, 2214894620 is an apocalyptic number.

214894620 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 214894620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359553600).

214894620 is an abundant number, since it is smaller than the sum of its proper divisors (504212580).

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

214894620 is an frugal number, since it uses more digits than its factorization.

214894620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 214894620 is about 14659.2844300123. The cubic root of 214894620 is about 598.9747490988.

The spelling of 214894620 in words is "two hundred fourteen million, eight hundred ninety-four thousand, six hundred twenty".