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121310150310 = 2335449296853
BaseRepresentation
bin111000011111010100…
…1011111111010100110
3102121010022110010212000
41300332221133322212
53441420344302220
6131421253310130
711523115156416
oct1607651377246
9377108403760
10121310150310
11474a1465478
121b616635346
13b59376743b
145c2b34a646
15324eeed390
hex1c3ea5fea6

121310150310 has 32 divisors (see below), whose sum is σ = 323493734880. Its totient is φ = 32349373344.

The previous prime is 121310150293. The next prime is 121310150321. The reversal of 121310150310 is 13051013121.

121310150310 is a `hidden beast` number, since 121 + 31 + 0 + 1 + 503 + 10 = 666.

It is a super-2 number, since 2×1213101503102 (a number of 23 digits) contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224648157 + ... + 224648696.

It is an arithmetic number, because the mean of its divisors is an integer number (10109179215).

Almost surely, 2121310150310 is an apocalyptic number.

121310150310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310150310 is an abundant number, since it is smaller than the sum of its proper divisors (202183584570).

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

121310150310 is a wasteful number, since it uses less digits than its factorization.

121310150310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449296869 (or 449296863 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 121310150310 its reverse (13051013121), we get a palindrome (134361163431).

The spelling of 121310150310 in words is "one hundred twenty-one billion, three hundred ten million, one hundred fifty thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 449296853 898593706 1347890559 2246484265 2695781118 4043671677 4492968530 6739452795 8087343354 12131015031 13478905590 20218358385 24262030062 40436716770 60655075155 121310150310