Search a number
-
+
101021110101018 = 235598342446879
BaseRepresentation
bin10110111110000011001111…
…011000011110010000011010
3111020200112010212010012100000
4112332003033120132100122
5101220112213141213033
6554504242435553430
730164351165611302
oct2676031730362032
9436615125105300
10101021110101018
112a2088a3045448
12b3b669945b876
13444a332a95903
141ad363ab4c602
15ba2bce480a13
hex5be0cf61e41a

101021110101018 has 96 divisors (see below), whose sum is σ = 233614044518400. Its totient is φ = 32704130986416.

The previous prime is 101021110101017. The next prime is 101021110101083. The reversal of 101021110101018 is 810101011120101.

101021110101018 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101021110101017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18843498 + ... + 23603381.

It is an arithmetic number, because the mean of its divisors is an integer number (2433479630400).

Almost surely, 2101021110101018 is an apocalyptic number.

101021110101018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

101021110101018 is an abundant number, since it is smaller than the sum of its proper divisors (132592934417382).

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

101021110101018 is an equidigital number, since it uses as much as digits as its factorization.

101021110101018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42447038 (or 42447026 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 101021110101018 its reverse (810101011120101), we get a palindrome (911122121221119).

The spelling of 101021110101018 in words is "one hundred one trillion, twenty-one billion, one hundred ten million, one hundred one thousand, eighteen".

Divisors: 1 2 3 6 9 18 27 54 59 81 83 118 162 166 177 243 249 354 486 498 531 747 1062 1494 1593 2241 3186 4482 4779 4897 6723 9558 9794 13446 14337 14691 20169 28674 29382 40338 44073 88146 132219 264438 396657 793314 1189971 2379942 42446879 84893758 127340637 254681274 382021911 764043822 1146065733 2292131466 2504365861 3438197199 3523090957 5008731722 6876394398 7046181914 7513097583 10314591597 10569272871 15026195166 20629183194 21138545742 22539292749 31707818613 45078585498 63415637226 67617878247 95123455839 135235756494 190246911678 202853634741 207862366463 285370367517 405707269482 415724732926 570740735034 608560904223 623587099389 856111102551 1217121808446 1247174198778 1712222205102 1870761298167 3741522596334 5612283894501 11224567789002 16836851683503 33673703367006 50510555050509 101021110101018