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213428118 = 23311147463
BaseRepresentation
bin11001011100010…
…10011110010110
3112212121021100010
430232022132112
5414114144433
633102301050
75201052261
oct1456123626
9485537303
10213428118
11aa524782
125b587786
13352a9337
14204b9cd8
1513b0ce63
hexcb8a796

213428118 has 16 divisors (see below), whose sum is σ = 440626176. Its totient is φ = 68847720.

The previous prime is 213428101. The next prime is 213428147. The reversal of 213428118 is 811824312.

It is a Curzon number.

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, 573546 + ... + 573917.

It is an arithmetic number, because the mean of its divisors is an integer number (27539136).

Almost surely, 2213428118 is an apocalyptic number.

213428118 is an abundant number, since it is smaller than the sum of its proper divisors (227198058).

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

213428118 is a wasteful number, since it uses less digits than its factorization.

213428118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147499.

The product of its digits is 3072, while the sum is 30.

The square root of 213428118 is about 14609.1792377258. The cubic root of 213428118 is about 597.6091131997.

The spelling of 213428118 in words is "two hundred thirteen million, four hundred twenty-eight thousand, one hundred eighteen".

Divisors: 1 2 3 6 31 62 93 186 1147463 2294926 3442389 6884778 35571353 71142706 106714059 213428118