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28885745746 = 21113100999111
BaseRepresentation
bin11010111001101110…
…011000000001010010
32202120002121220220001
4122321232120001102
5433124222330441
621134145440214
72041546534114
oct327156300122
982502556801
1028885745746
1111283283350
12572194006a
132954593360
1415804793b4
15b40dc9731
hex6b9b98052

28885745746 has 16 divisors (see below), whose sum is σ = 50903552448. Its totient is φ = 12119893200.

The previous prime is 28885745743. The next prime is 28885745753. The reversal of 28885745746 is 64754758882.

It is not an unprimeable number, because it can be changed into a prime (28885745743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50499270 + ... + 50499841.

It is an arithmetic number, because the mean of its divisors is an integer number (3181472028).

Almost surely, 228885745746 is an apocalyptic number.

28885745746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28885745746 is a deficient number, since it is larger than the sum of its proper divisors (22017806702).

28885745746 is a wasteful number, since it uses less digits than its factorization.

28885745746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100999137.

The product of its digits is 120422400, while the sum is 64.

The spelling of 28885745746 in words is "twenty-eight billion, eight hundred eighty-five million, seven hundred forty-five thousand, seven hundred forty-six".

Divisors: 1 2 11 13 22 26 143 286 100999111 201998222 1110990221 1312988443 2221980442 2625976886 14442872873 28885745746