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28008531106 = 223837335917
BaseRepresentation
bin11010000101011100…
…000100010010100010
32200021221222210121221
4122011130010102202
5424330140443411
620511132005254
72011035405043
oct320534042242
980257883557
1028008531106
11109730a3a76
12551800082a
132844916b3a
1414d9b708ca
15addd9e071
hex6857044a2

28008531106 has 16 divisors (see below), whose sum is σ = 44367632064. Its totient is φ = 13233992464.

The previous prime is 28008531079. The next prime is 28008531107. The reversal of 28008531106 is 60113580082.

It is not an unprimeable number, because it can be changed into a prime (28008531107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3664141 + ... + 3671776.

It is an arithmetic number, because the mean of its divisors is an integer number (2772977004).

Almost surely, 228008531106 is an apocalyptic number.

28008531106 is a deficient number, since it is larger than the sum of its proper divisors (16359100958).

28008531106 is a wasteful number, since it uses less digits than its factorization.

28008531106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336025.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 28008531106 in words is "twenty-eight billion, eight million, five hundred thirty-one thousand, one hundred six".

Divisors: 1 2 23 46 83 166 1909 3818 7335917 14671834 168726091 337452182 608881111 1217762222 14004265553 28008531106