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212311054 = 21940113933
BaseRepresentation
bin11001010011110…
…01110000001110
3112210111112000101
430221321300032
5413322423204
633022321314
75155420444
oct1451716016
9483445011
10212311054
11a993148a
125b12923a
1334ca7a57
14202a8b94
151398bea4
hexca79c0e

212311054 has 16 divisors (see below), whose sum is σ = 336088080. Its totient is φ = 100310400.

The previous prime is 212311051. The next prime is 212311061. The reversal of 212311054 is 450113212.

212311054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212311051) 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, 8272 + ... + 22204.

It is an arithmetic number, because the mean of its divisors is an integer number (21005505).

Almost surely, 2212311054 is an apocalyptic number.

212311054 is a deficient number, since it is larger than the sum of its proper divisors (123777026).

212311054 is a wasteful number, since it uses less digits than its factorization.

212311054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14355.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 212311054 is about 14570.8975015268. The cubic root of 212311054 is about 596.5646777328.

Adding to 212311054 its reverse (450113212), we get a palindrome (662424266).

The spelling of 212311054 in words is "two hundred twelve million, three hundred eleven thousand, fifty-four".

Divisors: 1 2 19 38 401 802 7619 13933 15238 27866 264727 529454 5587133 11174266 106155527 212311054