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28262262 = 23717231721
BaseRepresentation
bin110101111001…
…1111101110110
31222011212112110
41223303331312
524213343022
62445431450
7462140160
oct153637566
958155473
1028262262
1114a53946
12956b586
135b17042
143a79930
15273400c
hex1af3f76

28262262 has 64 divisors (see below), whose sum is σ = 71414784. Its totient is φ = 7265280.

The previous prime is 28262261. The next prime is 28262293. The reversal of 28262262 is 26226282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28262261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15562 + ... + 17282.

It is an arithmetic number, because the mean of its divisors is an integer number (1115856).

Almost surely, 228262262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28262262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35707392).

28262262 is an abundant number, since it is smaller than the sum of its proper divisors (43152522).

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

28262262 is a wasteful number, since it uses less digits than its factorization.

28262262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773.

The product of its digits is 9216, while the sum is 30.

The square root of 28262262 is about 5316.2262931519. The cubic root of 28262262 is about 304.6040261377.

The spelling of 28262262 in words is "twenty-eight million, two hundred sixty-two thousand, two hundred sixty-two".

Divisors: 1 2 3 6 7 14 17 21 23 34 42 46 51 69 102 119 138 161 238 322 357 391 483 714 782 966 1173 1721 2346 2737 3442 5163 5474 8211 10326 12047 16422 24094 29257 36141 39583 58514 72282 79166 87771 118749 175542 204799 237498 277081 409598 554162 614397 672911 831243 1228794 1345822 1662486 2018733 4037466 4710377 9420754 14131131 28262262