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212415054 = 2361896521
BaseRepresentation
bin11001010100100…
…11001001001110
3112210200210200020
430222103021032
5413334240204
633024443010
75156332605
oct1452231116
9483623606
10212415054
11a99a2635
125b179466
13350131a7
14202d4a3c
15139acbd9
hexca9324e

212415054 has 32 divisors (see below), whose sum is σ = 436713120. Its totient is φ = 68851200.

The previous prime is 212415037. The next prime is 212415061. The reversal of 212415054 is 450514212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29314 + ... + 35834.

It is an arithmetic number, because the mean of its divisors is an integer number (13647285).

Almost surely, 2212415054 is an apocalyptic number.

212415054 is an abundant number, since it is smaller than the sum of its proper divisors (224298066).

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

212415054 is a wasteful number, since it uses less digits than its factorization.

212415054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 212415054 is about 14574.4658221151. The cubic root of 212415054 is about 596.6620703674.

Adding to 212415054 its reverse (450514212), we get a palindrome (662929266).

It can be divided in two parts, 2124150 and 54, that multiplied together give a square (114704100 = 107102).

The spelling of 212415054 in words is "two hundred twelve million, four hundred fifteen thousand, fifty-four".

Divisors: 1 2 3 6 61 89 122 178 183 267 366 534 5429 6521 10858 13042 16287 19563 32574 39126 397781 580369 795562 1160738 1193343 1741107 2386686 3482214 35402509 70805018 106207527 212415054