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2028537258 = 2311213114423
BaseRepresentation
bin111100011101001…
…0000010110101010
312020101001100222120
41320322100112222
513123301143013
6533142332110
7101161165536
oct17072202652
95211040876
102028537258
11951069080
1248742a036
13264359607
141535a6bc6
15bd14d123
hex78e905aa

2028537258 has 32 divisors (see below), whose sum is σ = 4428283392. Its totient is φ = 614377200.

The previous prime is 2028537253. The next prime is 2028537263. The reversal of 2028537258 is 8527358202.

It is an interprime number because it is at equal distance from previous prime (2028537253) and next prime (2028537263).

It is a super-2 number, since 2×20285372582 = 8229926814188317128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028537253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133435 + ... + 147857.

It is an arithmetic number, because the mean of its divisors is an integer number (138383856).

Almost surely, 22028537258 is an apocalyptic number.

2028537258 is an abundant number, since it is smaller than the sum of its proper divisors (2399746134).

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

2028537258 is a wasteful number, since it uses less digits than its factorization.

2028537258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 2028537258 is about 45039.2857181372. The cubic root of 2028537258 is about 1265.8852210330.

The spelling of 2028537258 in words is "two billion, twenty-eight million, five hundred thirty-seven thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 11 22 33 66 2131 4262 6393 12786 14423 23441 28846 43269 46882 70323 86538 140646 158653 317306 475959 951918 30735413 61470826 92206239 184412478 338089543 676179086 1014268629 2028537258