Search a number
-
+
120121300012 = 2275779742351
BaseRepresentation
bin110111111011111001…
…0011001010000101100
3102111001110102021211111
41233313302121100230
53432002023100022
6131103304201404
711451501126520
oct1576762312054
9374043367744
10120121300012
1146a4138466a
121b344469264
13b434377c1c
145b574bdd80
1531d0966477
hex1bf7c9942c

120121300012 has 24 divisors (see below), whose sum is σ = 240284495360. Its totient is φ = 51471579600.

The previous prime is 120121299989. The next prime is 120121300021. The reversal of 120121300012 is 210003121021.

It is a super-2 number, since 2×1201213000122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120121299965 and 120121300001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209364 + ... + 532987.

Almost surely, 2120121300012 is an apocalyptic number.

It is an amenable number.

120121300012 is an abundant number, since it is smaller than the sum of its proper divisors (120163195348).

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

120121300012 is a wasteful number, since it uses less digits than its factorization.

120121300012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748141 (or 748139 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120121300012 its reverse (210003121021), we get a palindrome (330124421033).

The spelling of 120121300012 in words is "one hundred twenty billion, one hundred twenty-one million, three hundred thousand, twelve".

Divisors: 1 2 4 7 14 28 5779 11558 23116 40453 80906 161812 742351 1484702 2969404 5196457 10392914 20785828 4290046429 8580092858 17160185716 30030325003 60060650006 120121300012