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212426912 = 256638341
BaseRepresentation
bin11001010100101…
…10000010100000
3112210201101221102
430222112002200
5413340130122
633025013532
75156412305
oct1452260240
9483641842
10212426912
11a9a00535
125b1842a8
13350186c9
14202d90ac
15139b1492
hexca960a0

212426912 has 12 divisors (see below), whose sum is σ = 418215546. Its totient is φ = 106213440.

The previous prime is 212426909. The next prime is 212426927. The reversal of 212426912 is 219624212.

It can be written as a sum of positive squares in only one way, i.e., 167857936 + 44568976 = 12956^2 + 6676^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3319139 + ... + 3319202.

Almost surely, 2212426912 is an apocalyptic number.

It is an amenable number.

212426912 is a deficient number, since it is larger than the sum of its proper divisors (205788634).

212426912 is an equidigital number, since it uses as much as digits as its factorization.

212426912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638351 (or 6638343 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 212426912 is about 14574.8726238002. The cubic root of 212426912 is about 596.6731729816.

The spelling of 212426912 in words is "two hundred twelve million, four hundred twenty-six thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 6638341 13276682 26553364 53106728 106213456 212426912