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28137004602 = 2372923100989
BaseRepresentation
bin11010001101000110…
…001001111000111010
32200121220201221010120
4122031012021320322
5430111033121402
620532001354110
72014155410250
oct321506117072
980556657116
1028137004602
1110a29673013
125553038936
132865419865
14150cc545d0
15aea2ca3bc
hex68d189e3a

28137004602 has 32 divisors (see below), whose sum is σ = 66530851200. Its totient is φ = 7761931968.

The previous prime is 28137004547. The next prime is 28137004619. The reversal of 28137004602 is 20640073182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11549277 + ... + 11551712.

It is an arithmetic number, because the mean of its divisors is an integer number (2079089100).

Almost surely, 228137004602 is an apocalyptic number.

28137004602 is an abundant number, since it is smaller than the sum of its proper divisors (38393846598).

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

28137004602 is a wasteful number, since it uses less digits than its factorization.

28137004602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23101030.

The product of its (nonzero) digits is 16128, while the sum is 33.

Adding to 28137004602 its reverse (20640073182), we get a palindrome (48777077784).

The spelling of 28137004602 in words is "twenty-eight billion, one hundred thirty-seven million, four thousand, six hundred two".

Divisors: 1 2 3 6 7 14 21 29 42 58 87 174 203 406 609 1218 23100989 46201978 69302967 138605934 161706923 323413846 485120769 669928681 970241538 1339857362 2009786043 4019572086 4689500767 9379001534 14068502301 28137004602