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213373312 = 277921101
BaseRepresentation
bin11001011011111…
…01000110000000
3112212111111011021
430231331012000
5414110421222
633101155224
75200433425
oct1455750600
9485444137
10213373312
11aa497589
125b55bb14
133528a3c9
14204a3d4c
1513aebac7
hexcb7d180

213373312 has 32 divisors (see below), whose sum is σ = 430480800. Its totient is φ = 105331200.

The previous prime is 213373291. The next prime is 213373327.

213373312 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 439 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (13452525).

Almost surely, 2213373312 is an apocalyptic number.

It is an amenable number.

213373312 is an abundant number, since it is smaller than the sum of its proper divisors (217107488).

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

213373312 is an equidigital number, since it uses as much as digits as its factorization.

213373312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21194 (or 21182 counting only the distinct ones).

The product of its digits is 2268, while the sum is 25.

The square root of 213373312 is about 14607.3033787897. The cubic root of 213373312 is about 597.5579556652.

It can be divided in two parts, 21337 and 3312, that added together give a square (24649 = 1572).

The spelling of 213373312 in words is "two hundred thirteen million, three hundred seventy-three thousand, three hundred twelve".

Divisors: 1 2 4 8 16 32 64 79 128 158 316 632 1264 2528 5056 10112 21101 42202 84404 168808 337616 675232 1350464 1666979 2700928 3333958 6667916 13335832 26671664 53343328 106686656 213373312