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212670512 = 2423577909
BaseRepresentation
bin11001010110100…
…01100000110000
3112211011210002122
430223101200300
5413420424022
633034133412
75161445435
oct1453214060
9484153078
10212670512
11aa05755a
125b281268
13350a2552
142035db8c
1513a0d742
hexcad1830

212670512 has 20 divisors (see below), whose sum is σ = 429965040. Its totient is φ = 101711808.

The previous prime is 212670511. The next prime is 212670539. The reversal of 212670512 is 215076212.

It is not an unprimeable number, because it can be changed into a prime (212670511) 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 3 ways as a sum of consecutive naturals, for example, 288587 + ... + 289322.

It is an arithmetic number, because the mean of its divisors is an integer number (21498252).

Almost surely, 2212670512 is an apocalyptic number.

It is an amenable number.

212670512 is an abundant number, since it is smaller than the sum of its proper divisors (217294528).

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

212670512 is a wasteful number, since it uses less digits than its factorization.

212670512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577940 (or 577934 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 212670512 is about 14583.2270777081. The cubic root of 212670512 is about 596.9011636494.

The spelling of 212670512 in words is "two hundred twelve million, six hundred seventy thousand, five hundred twelve".

Divisors: 1 2 4 8 16 23 46 92 184 368 577909 1155818 2311636 4623272 9246544 13291907 26583814 53167628 106335256 212670512