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212320000 = 28541327
BaseRepresentation
bin11001010011110…
…11111100000000
3112210111222021201
430221323330000
5413323220000
633022430544
75155455514
oct1451737400
9483458251
10212320000
11a9938182
125b132454
1334cabb49
14202ac144
151398e96a
hexca7bf00

212320000 has 90 divisors (see below), whose sum is σ = 529992848. Its totient is φ = 84864000.

The previous prime is 212319979. The next prime is 212320001. The reversal of 212320000 is 23212.

212320000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159337 + ... + 160663.

Almost surely, 2212320000 is an apocalyptic number.

212320000 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 212320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264996424).

212320000 is an abundant number, since it is smaller than the sum of its proper divisors (317672848).

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

212320000 is an frugal number, since it uses more digits than its factorization.

212320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 212320000 is about 14571.2044800696. The cubic root of 212320000 is about 596.5730566224.

Adding to 212320000 its reverse (23212), we get a palindrome (212343212).

The spelling of 212320000 in words is "two hundred twelve million, three hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 625 640 800 1000 1250 1280 1327 1600 2000 2500 2654 3200 4000 5000 5308 6400 6635 8000 10000 10616 13270 16000 20000 21232 26540 32000 33175 40000 42464 53080 66350 80000 84928 106160 132700 160000 165875 169856 212320 265400 331750 339712 424640 530800 663500 829375 849280 1061600 1327000 1658750 1698560 2123200 2654000 3317500 4246400 5308000 6635000 8492800 10616000 13270000 21232000 26540000 42464000 53080000 106160000 212320000