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64213200212 = 2272293328579
BaseRepresentation
bin111011110011011001…
…111010110101010100
320010202010110112220112
4323303121322311110
52023002034401322
645255451422152
74432156124150
oct736331726524
9203663415815
1064213200212
112526174a807
1210540a54958
1360945a8275
143172264060
151a0c58d5e2
hexef367ad54

64213200212 has 12 divisors (see below), whose sum is σ = 128426400480. Its totient is φ = 27519942936.

The previous prime is 64213200211. The next prime is 64213200229. The reversal of 64213200212 is 21200231246.

It is a happy number.

64213200212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64213200211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146664262 + ... + 1146664317.

It is an arithmetic number, because the mean of its divisors is an integer number (10702200040).

Almost surely, 264213200212 is an apocalyptic number.

It is an amenable number.

64213200212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64213200212 is a wasteful number, since it uses less digits than its factorization.

64213200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293328590 (or 2293328588 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 64213200212 its reverse (21200231246), we get a palindrome (85413431458).

The spelling of 64213200212 in words is "sixty-four billion, two hundred thirteen million, two hundred thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 2293328579 4586657158 9173314316 16053300053 32106600106 64213200212