Search a number
-
+
121200101232 = 24371637220351
BaseRepresentation
bin111000011100000010…
…1101100011101110000
3102120211122101001220020
41300320011230131300
53441204211214412
6131402322443440
711520310601550
oct1607005543560
9376748331806
10121200101232
114744532aa21
121b5a5803580
13b576a15942
145c1a8a1160
15324551118c
hex1c3816c770

121200101232 has 80 divisors (see below), whose sum is σ = 358049083392. Its totient is φ = 34607289600.

The previous prime is 121200101201. The next prime is 121200101249. The reversal of 121200101232 is 232101002121.

121200101232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439857 + ... + 660207.

Almost surely, 2121200101232 is an apocalyptic number.

121200101232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121200101232 is an abundant number, since it is smaller than the sum of its proper divisors (236848982160).

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

121200101232 is a wasteful number, since it uses less digits than its factorization.

121200101232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222006 (or 222000 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121200101232 its reverse (232101002121), we get a palindrome (353301103353).

The spelling of 121200101232 in words is "one hundred twenty-one billion, two hundred million, one hundred one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 1637 3274 4911 6548 9822 11459 13096 19644 22918 26192 34377 39288 45836 68754 78576 91672 137508 183344 220351 275016 440702 550032 661053 881404 1322106 1542457 1762808 2644212 3084914 3525616 4627371 5288424 6169828 9254742 10576848 12339656 18509484 24679312 37018968 74037936 360714587 721429174 1082143761 1442858348 2164287522 2525002109 2885716696 4328575044 5050004218 5771433392 7575006327 8657150088 10100008436 15150012654 17314300176 20200016872 30300025308 40400033744 60600050616 121200101232