Search a number
-
+
120030211111200 = 253521317435262821
BaseRepresentation
bin11011010010101010110110…
…000110000111100100100000
3120201222202221210022111102220
4123102222312012013210200
5111213033333021024300
61103141041233511040
734165616345325435
oct3322526606074440
9521882853274386
10120030211111200
1135277587a9a205
12115667aaa12480
1351c8a53469630
14218d6c954db8c
15dd23dba80da0
hex6d2ab6187920

120030211111200 has 576 divisors, whose sum is σ = 455862778664832. Its totient is φ = 27161203507200.

The previous prime is 120030211110961. The next prime is 120030211111201. The reversal of 120030211111200 is 2111112030021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120030211111200.

It is not an unprimeable number, because it can be changed into a prime (120030211111201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20175790 + ... + 25438610.

It is an arithmetic number, because the mean of its divisors is an integer number (791428435182).

Almost surely, 2120030211111200 is an apocalyptic number.

120030211111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120030211111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227931389332416).

120030211111200 is an abundant number, since it is smaller than the sum of its proper divisors (335832567553632).

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

120030211111200 is a wasteful number, since it uses less digits than its factorization.

120030211111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262917 (or 5262904 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 120030211111200 its reverse (2111112030021), we get a palindrome (122141323141221).

The spelling of 120030211111200 in words is "one hundred twenty trillion, thirty billion, two hundred eleven million, one hundred eleven thousand, two hundred".