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212956206 = 23151235051
BaseRepresentation
bin11001011000101…
…11010000101110
3112211201021222220
430230113100232
5414004044311
633044220210
75164045401
oct1454272056
9484637886
10212956206
11aa232171
125b39a666
13351725b8
14203d5d38
1513a68206
hexcb1742e

212956206 has 16 divisors (see below), whose sum is σ = 428734848. Its totient is φ = 70515000.

The previous prime is 212956187. The next prime is 212956223. The reversal of 212956206 is 602659212.

212956206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116620 + ... + 118431.

It is an arithmetic number, because the mean of its divisors is an integer number (26795928).

Almost surely, 2212956206 is an apocalyptic number.

212956206 is an abundant number, since it is smaller than the sum of its proper divisors (215778642).

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

212956206 is a wasteful number, since it uses less digits than its factorization.

212956206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235207.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 212956206 is about 14593.0190844801. The cubic root of 212956206 is about 597.1683293142.

The spelling of 212956206 in words is "two hundred twelve million, nine hundred fifty-six thousand, two hundred six".

Divisors: 1 2 3 6 151 302 453 906 235051 470102 705153 1410306 35492701 70985402 106478103 212956206