Search a number
-
+
121230033013100 = 225211213151717091
BaseRepresentation
bin11011100100001000010001…
…000011011100100101101100
3120220020110220102220021202102
4123210020101003130211230
5111342213101422404400
61105500150333114232
734351403142244154
oct3344102103344554
9526213812807672
10121230033013100
113569a4061a2590
121171b238928978
135284c34b9803b
1421d17ca157764
15e03710cdb9d5
hex6e42110dc96c

121230033013100 has 72 divisors (see below), whose sum is σ = 287119227734976. Its totient is φ = 44062960680000.

The previous prime is 121230033013081. The next prime is 121230033013109. The reversal of 121230033013100 is 1310330032121.

It is a super-2 number, since 2×1212300330131002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (121230033013109) 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, 23514446 + ... + 28202645.

Almost surely, 2121230033013100 is an apocalyptic number.

121230033013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230033013100 is an abundant number, since it is smaller than the sum of its proper divisors (165889194721876).

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

121230033013100 is a wasteful number, since it uses less digits than its factorization.

121230033013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51719247 (or 51719240 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121230033013100 its reverse (1310330032121), we get a palindrome (122540363045221).

The spelling of 121230033013100 in words is "one hundred twenty-one trillion, two hundred thirty billion, thirty-three million, thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 2131 4262 8524 10655 21310 23441 42620 46882 53275 93764 106550 117205 213100 234410 468820 586025 1172050 2344100 51717091 103434182 206868364 258585455 517170910 568888001 1034341820 1137776002 1292927275 2275552004 2585854550 2844440005 5171709100 5688880010 11377760020 14222200025 28444400050 56888800100 110209120921 220418241842 440836483684 551045604605 1102091209210 1212300330131 2204182418420 2424600660262 2755228023025 4849201320524 5510456046050 6061501650655 11020912092100 12123003301310 24246006602620 30307508253275 60615016506550 121230033013100