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266028120 = 233251922389
BaseRepresentation
bin11111101101101…
…00010001011000
3200112120121222100
433312310101120
51021100344440
642221523400
76410126121
oct1766642130
9615517870
10266028120
11127190956
1275113560
1343164cb7
142748d048
151854d230
hexfdb4458

266028120 has 288 divisors, whose sum is σ = 962863200. Its totient is φ = 63562752.

The previous prime is 266028083. The next prime is 266028127. The reversal of 266028120 is 21820662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266028127) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2989036 + ... + 2989124.

It is an arithmetic number, because the mean of its divisors is an integer number (3343275).

Almost surely, 2266028120 is an apocalyptic number.

266028120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266028120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481431600).

266028120 is an abundant number, since it is smaller than the sum of its proper divisors (696835080).

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

266028120 is a wasteful number, since it uses less digits than its factorization.

266028120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 266028120 is about 16310.3684814292. The cubic root of 266028120 is about 643.1454207605.

Adding to 266028120 its reverse (21820662), we get a palindrome (287848782).

The spelling of 266028120 in words is "two hundred sixty-six million, twenty-eight thousand, one hundred twenty".