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212368000 = 2753131021
BaseRepresentation
bin11001010100001…
…11101010000000
3112210121102010111
430222013222000
5413331234000
633023441104
75156045455
oct1452075200
9483542114
10212368000
11a9970249
125b156194
1334cc7950
14202c182c
151399dcba
hexca87a80

212368000 has 128 divisors (see below), whose sum is σ = 569172240. Its totient is φ = 78336000.

The previous prime is 212367983. The next prime is 212368001. The reversal of 212368000 is 863212.

It can be written as a sum of positive squares in 8 ways, for example, as 141376 + 212226624 = 376^2 + 14568^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212368001) 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 15 ways as a sum of consecutive naturals, for example, 207490 + ... + 208510.

Almost surely, 2212368000 is an apocalyptic number.

212368000 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 212368000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284586120).

212368000 is an abundant number, since it is smaller than the sum of its proper divisors (356804240).

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

212368000 is a wasteful number, since it uses less digits than its factorization.

212368000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 212368000 is about 14572.8514711432. The cubic root of 212368000 is about 596.6180097577.

The spelling of 212368000 in words is "two hundred twelve million, three hundred sixty-eight thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 200 208 250 260 320 325 400 416 500 520 640 650 800 832 1000 1021 1040 1300 1600 1625 1664 2000 2042 2080 2600 3200 3250 4000 4084 4160 5105 5200 6500 8000 8168 8320 10210 10400 13000 13273 16000 16336 20420 20800 25525 26000 26546 32672 40840 41600 51050 52000 53092 65344 66365 81680 102100 104000 106184 127625 130688 132730 163360 204200 208000 212368 255250 265460 326720 331825 408400 424736 510500 530920 653440 663650 816800 849472 1021000 1061840 1327300 1633600 1659125 1698944 2042000 2123680 2654600 3267200 3318250 4084000 4247360 5309200 6636500 8168000 8494720 10618400 13273000 16336000 21236800 26546000 42473600 53092000 106184000 212368000