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212429292 = 22329610429
BaseRepresentation
bin11001010100101…
…10100111101100
3112210201112012120
430222112213230
5413340214132
633025032540
75156422245
oct1452264754
9483645176
10212429292
11a9a022a9
125b185750
133501980a
14202d9ccc
15139b202c
hexca969ec

212429292 has 24 divisors (see below), whose sum is σ = 512761200. Its totient is φ = 68367936.

The previous prime is 212429281. The next prime is 212429299. The reversal of 212429292 is 292924212.

It is not an unprimeable number, because it can be changed into a prime (212429299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304867 + ... + 305562.

It is an arithmetic number, because the mean of its divisors is an integer number (21365050).

Almost surely, 2212429292 is an apocalyptic number.

It is an amenable number.

212429292 is an abundant number, since it is smaller than the sum of its proper divisors (300331908).

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

212429292 is a wasteful number, since it uses less digits than its factorization.

212429292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610465 (or 610463 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 212429292 is about 14574.9542709403. The cubic root of 212429292 is about 596.6754013196.

The spelling of 212429292 in words is "two hundred twelve million, four hundred twenty-nine thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 610429 1220858 1831287 2441716 3662574 7325148 17702441 35404882 53107323 70809764 106214646 212429292