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212452918 = 21312293541
BaseRepresentation
bin11001010100111…
…00011000110110
3112210202201121121
430222130120312
5413341443133
633025334154
75156551156
oct1452343066
9483681547
10212452918
11a9a19027
125b19735a
13350274b2
1420304766
15139b902d
hexca9c636

212452918 has 16 divisors (see below), whose sum is σ = 322605360. Its totient is φ = 104925600.

The previous prime is 212452901. The next prime is 212452943. The reversal of 212452918 is 819254212.

212452918 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, 58228 + ... + 61768.

It is an arithmetic number, because the mean of its divisors is an integer number (20162835).

Almost surely, 2212452918 is an apocalyptic number.

212452918 is a deficient number, since it is larger than the sum of its proper divisors (110152442).

212452918 is a wasteful number, since it uses less digits than its factorization.

212452918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903.

The product of its digits is 11520, while the sum is 34.

The square root of 212452918 is about 14575.7647483760. The cubic root of 212452918 is about 596.6975208843.

The spelling of 212452918 in words is "two hundred twelve million, four hundred fifty-two thousand, nine hundred eighteen".

Divisors: 1 2 131 229 262 458 3541 7082 29999 59998 463871 810889 927742 1621778 106226459 212452918