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28489000310 = 2531101909901
BaseRepresentation
bin11010100010000100…
…111010010101110110
32201112110002011110122
4122202010322111312
5431321141002220
621030534051542
72025661335641
oct324204722566
981473064418
1028489000310
111109a330661
125630aa9bb2
1328c0321244
1415438c0a58
15b1b15a425
hex6a213a576

28489000310 has 32 divisors (see below), whose sum is σ = 53458562304. Its totient is φ = 10918800000.

The previous prime is 28489000307. The next prime is 28489000391. The reversal of 28489000310 is 1300098482.

It is a happy number.

It is a super-2 number, since 2×284890003102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 423641 + ... + 486260.

It is an arithmetic number, because the mean of its divisors is an integer number (1670580072).

Almost surely, 228489000310 is an apocalyptic number.

28489000310 is a deficient number, since it is larger than the sum of its proper divisors (24969561994).

28489000310 is a wasteful number, since it uses less digits than its factorization.

28489000310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910040.

The product of its (nonzero) digits is 13824, while the sum is 35.

Adding to 28489000310 its reverse (1300098482), we get a palindrome (29789098792).

The spelling of 28489000310 in words is "twenty-eight billion, four hundred eighty-nine million, three hundred ten", and thus it is an aban number.

Divisors: 1 2 5 10 31 62 101 155 202 310 505 1010 3131 6262 15655 31310 909901 1819802 4549505 9099010 28206931 56413862 91900001 141034655 183800002 282069310 459500005 919000010 2848900031 5697800062 14244500155 28489000310