Search a number
-
+
121011223230 = 23252080764621
BaseRepresentation
bin111000010110011010…
…1001011101010111110
3102120100110222001222200
41300230311023222332
53440312333120410
6131331454252330
711512525266042
oct1605465135276
9376313861880
10121011223230
11473587540a7
121b5524b70a6
13b546853b01
145bdd776022
153233b523c0
hex1c2cd4babe

121011223230 has 48 divisors (see below), whose sum is σ = 314649170784. Its totient is φ = 32267609280.

The previous prime is 121011223159. The next prime is 121011223241. The reversal of 121011223230 is 32322110121.

121011223230 is a `hidden beast` number, since 1 + 210 + 1 + 1 + 223 + 230 = 666.

It is a super-3 number, since 3×1210112232303 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1840320 + ... + 1904940.

It is an arithmetic number, because the mean of its divisors is an integer number (6555191058).

Almost surely, 2121011223230 is an apocalyptic number.

121011223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121011223230 is an abundant number, since it is smaller than the sum of its proper divisors (193637947554).

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

121011223230 is a wasteful number, since it uses less digits than its factorization.

121011223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85441 (or 85438 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121011223230 its reverse (32322110121), we get a palindrome (153333333351).

The spelling of 121011223230 in words is "one hundred twenty-one billion, eleven million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 20807 41614 62421 64621 104035 124842 129242 187263 193863 208070 312105 323105 374526 387726 581589 624210 646210 936315 969315 1163178 1872630 1938630 2907945 5815890 1344569147 2689138294 4033707441 6722845735 8067414882 12101122323 13445691470 20168537205 24202244646 40337074410 60505611615 121011223230