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28061101718 = 2132251353937
BaseRepresentation
bin11010001000100100…
…100110111010010110
32200102121220122221122
4122020210212322112
5424432120223333
620520250443542
72012244300116
oct321044467226
980377818848
1028061101718
111099a840061
1255317335b2
132852792300
141502b37046
15ae37d5798
hex688926e96

28061101718 has 48 divisors (see below), whose sum is σ = 45938730096. Its totient is φ = 12849408000.

The previous prime is 28061101711. The next prime is 28061101741. The reversal of 28061101718 is 81710116082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28061101711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29947346 + ... + 29948282.

It is an arithmetic number, because the mean of its divisors is an integer number (957056877).

Almost surely, 228061101718 is an apocalyptic number.

28061101718 is a deficient number, since it is larger than the sum of its proper divisors (17877628378).

28061101718 is a wasteful number, since it uses less digits than its factorization.

28061101718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 35.

The spelling of 28061101718 in words is "twenty-eight billion, sixty-one million, one hundred one thousand, seven hundred eighteen".

Divisors: 1 2 13 26 169 251 338 353 502 706 937 1874 3263 4589 6526 9178 12181 24362 42419 59657 84838 88603 119314 158353 177206 235187 316706 330761 470374 661522 1151839 2303678 3057431 4299893 6114862 8599786 14973907 29947814 39746603 55898609 79493206 83021011 111797218 166042022 1079273143 2158546286 14030550859 28061101718