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28037317055 = 5112322163887
BaseRepresentation
bin11010000111001001…
…111000000110111111
32200100222011021112012
4122013021320012333
5424410023121210
620514041001435
72011535156066
oct320711700677
980328137465
1028037317055
1110988375310
12552578327b
13284a885347
1414dd9051dd
15ae1688305
hex6872781bf

28037317055 has 16 divisors (see below), whose sum is σ = 38299198464. Its totient is φ = 19504219680.

The previous prime is 28037317039. The next prime is 28037317057. The reversal of 28037317055 is 55071373082.

It is not a de Polignac number, because 28037317055 - 24 = 28037317039 is a prime.

It is a super-2 number, since 2×280373170552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28037317057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11080679 + ... + 11083208.

It is an arithmetic number, because the mean of its divisors is an integer number (2393699904).

Almost surely, 228037317055 is an apocalyptic number.

28037317055 is a deficient number, since it is larger than the sum of its proper divisors (10261881409).

28037317055 is a wasteful number, since it uses less digits than its factorization.

28037317055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22163926.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 28037317055 in words is "twenty-eight billion, thirty-seven million, three hundred seventeen thousand, fifty-five".

Divisors: 1 5 11 23 55 115 253 1265 22163887 110819435 243802757 509769401 1219013785 2548847005 5607463411 28037317055