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212011008 = 2113113137
BaseRepresentation
bin11001010001100…
…00100000000000
3112202221021102120
430220300200000
5413233323013
633012044240
75153030616
oct1450604000
9482837376
10212011008
11a9747010
125b003680
1334c01301
142022b6b6
151392d123
hexca30800

212011008 has 96 divisors (see below), whose sum is σ = 616805280. Its totient is φ = 64225280.

The previous prime is 212010989. The next prime is 212011043. The reversal of 212011008 is 800110212.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66016 + ... + 69152.

It is an arithmetic number, because the mean of its divisors is an integer number (6425055).

Almost surely, 2212011008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212011008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308402640).

212011008 is an abundant number, since it is smaller than the sum of its proper divisors (404794272).

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

212011008 is a wasteful number, since it uses less digits than its factorization.

212011008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 212011008 is about 14560.5977899261. The cubic root of 212011008 is about 596.2835159972.

The spelling of 212011008 in words is "two hundred twelve million, eleven thousand, eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1408 1536 2048 2112 2816 3072 3137 4224 5632 6144 6274 8448 9411 11264 12548 16896 18822 22528 25096 33792 34507 37644 50192 67584 69014 75288 100384 103521 138028 150576 200768 207042 276056 301152 401536 414084 552112 602304 803072 828168 1104224 1204608 1606144 1656336 2208448 2409216 3212288 3312672 4416896 4818432 6424576 6625344 8833792 9636864 13250688 17667584 19273728 26501376 35335168 53002752 70670336 106005504 212011008