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213446968 = 23717224209
BaseRepresentation
bin11001011100011…
…11000100111000
3112212122020012021
430232033010320
5414120300333
633102524224
75201161240
oct1456170470
9485566167
10213446968
11aa537959
125b596674
13352b4aa7
14204c2b20
1513b1382d
hexcb8f138

213446968 has 32 divisors (see below), whose sum is σ = 484293600. Its totient is φ = 86095872.

The previous prime is 213446957. The next prime is 213446993. The reversal of 213446968 is 869644312.

It is a happy number.

213446968 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, 111153 + ... + 113056.

It is an arithmetic number, because the mean of its divisors is an integer number (15134175).

Almost surely, 2213446968 is an apocalyptic number.

213446968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213446968 is an abundant number, since it is smaller than the sum of its proper divisors (270846632).

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

213446968 is a wasteful number, since it uses less digits than its factorization.

213446968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224239 (or 224235 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 213446968 is about 14609.8243658163. The cubic root of 213446968 is about 597.6267063208.

The spelling of 213446968 in words is "two hundred thirteen million, four hundred forty-six thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 224209 448418 896836 1569463 1793672 3138926 3811553 6277852 7623106 12555704 15246212 26680871 30492424 53361742 106723484 213446968