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2061208668 = 223712419259
BaseRepresentation
bin111101011011011…
…1000110001011100
312022122112020201210
41322312320301130
513210132134133
6540310504420
7102035661501
oct17266706134
95278466653
102061208668
11968553642
12496365110
1326b0584cc
14157a6d4a8
15c0e53763
hex7adb8c5c

2061208668 has 24 divisors (see below), whose sum is σ = 4877228160. Its totient is φ = 677392240.

The previous prime is 2061208663. The next prime is 2061208697. The reversal of 2061208668 is 8668021602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061208663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208778 + ... + 1210481.

It is an arithmetic number, because the mean of its divisors is an integer number (203217840).

Almost surely, 22061208668 is an apocalyptic number.

It is an amenable number.

2061208668 is an abundant number, since it is smaller than the sum of its proper divisors (2816019492).

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

2061208668 is a wasteful number, since it uses less digits than its factorization.

2061208668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419337 (or 2419335 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2061208668 is about 45400.5359880255. The cubic root of 2061208668 is about 1272.6451303059.

The spelling of 2061208668 in words is "two billion, sixty-one million, two hundred eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 2419259 4838518 7257777 9677036 14515554 29031108 171767389 343534778 515302167 687069556 1030604334 2061208668