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28101110466 = 2311131719101399
BaseRepresentation
bin11010001010111101…
…001110101011000010
32200112102012022122010
4122022331032223002
5430022341013331
620524240153350
72013241332522
oct321275165302
980472168563
1028101110466
1110a10387240
125543008856
13285ab5cb20
14150818d682
15ae7089e46
hex68af4eac2

28101110466 has 128 divisors (see below), whose sum is σ = 73592064000. Its totient is φ = 7008629760.

The previous prime is 28101110459. The next prime is 28101110467. The reversal of 28101110466 is 66401110182.

It is not an unprimeable number, because it can be changed into a prime (28101110467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226435 + ... + 327833.

It is an arithmetic number, because the mean of its divisors is an integer number (574938000).

Almost surely, 228101110466 is an apocalyptic number.

28101110466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28101110466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36796032000).

28101110466 is an abundant number, since it is smaller than the sum of its proper divisors (45490953534).

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

28101110466 is a wasteful number, since it uses less digits than its factorization.

28101110466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101464.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 28101110466 in words is "twenty-eight billion, one hundred one million, one hundred ten thousand, four hundred sixty-six".

Divisors: 1 2 3 6 11 13 17 19 22 26 33 34 38 39 51 57 66 78 102 114 143 187 209 221 247 286 323 374 418 429 442 494 561 627 646 663 741 858 969 1122 1254 1326 1482 1938 2431 2717 3553 4199 4862 5434 7106 7293 8151 8398 10659 12597 14586 16302 21318 25194 46189 92378 101399 138567 202798 277134 304197 608394 1115389 1318187 1723783 1926581 2230778 2636374 3346167 3447566 3853162 3954561 5171349 5779743 6692334 7909122 10342698 11559486 14500057 18961613 21192391 22409179 25045553 29000114 32751877 37923226 42384782 43500171 44818358 50091106 56884839 63577173 65503754 67227537 75136659 87000342 98255631 113769678 127154346 134455074 150273318 196511262 246500969 275501083 360270647 425774401 493001938 551002166 720541294 739502907 826503249 851548802 1080811941 1277323203 1479005814 1653006498 2161623882 2554646406 4683518411 9367036822 14050555233 28101110466