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212450212 = 221310738183
BaseRepresentation
bin11001010100110…
…11101110100100
3112210202120220101
430222123232210
5413341401322
633025313444
75156540242
oct1452335644
9483676811
10212450212
11a9a16a97
125b195884
13350261b0
1420303792
15139b8327
hexca9bba4

212450212 has 24 divisors (see below), whose sum is σ = 404139456. Its totient is φ = 97135008.

The previous prime is 212450123. The next prime is 212450237. The reversal of 212450212 is 212054212.

It is a self number, because there is not a number n which added to its sum of digits gives 212450212.

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, 13528 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (16839144).

Almost surely, 2212450212 is an apocalyptic number.

It is an amenable number.

212450212 is a deficient number, since it is larger than the sum of its proper divisors (191689244).

212450212 is a wasteful number, since it uses less digits than its factorization.

212450212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38307 (or 38305 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 212450212 is about 14575.6719227623. The cubic root of 212450212 is about 596.6949875068.

The spelling of 212450212 in words is "two hundred twelve million, four hundred fifty thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 107 214 428 1391 2782 5564 38183 76366 152732 496379 992758 1985516 4085581 8171162 16342324 53112553 106225106 212450212