Base | Representation |
---|---|
bin | 1101101100000111110010… |
… | …01010100011000010101000 |
3 | 10221120211220111202111221200 |
4 | 12312003321022203002220 |
5 | 12421203040120231440 |
6 | 144005134210404200 |
7 | 6224615053306524 |
oct | 666037112430250 |
9 | 127524814674850 |
10 | 30103311102120 |
11 | 9656819364193 |
12 | 3462281b90660 |
13 | 13a4964c1a3c9 |
14 | 761018076d84 |
15 | 3730c9a5ac30 |
hex | 1b60f92a30a8 |
30103311102120 has 96 divisors (see below), whose sum is σ = 100479970885320. Its totient is φ = 7810588823040.
The previous prime is 30103311102107. The next prime is 30103311102121. The reversal of 30103311102120 is 2120111330103.
30103311102120 is a `hidden beast` number, since 3 + 0 + 10 + 331 + 110 + 212 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 28895505706116 + 1207805396004 = 5375454^2 + 1099002^2 .
It is a super-2 number, since 2×301033111021202 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30103311102093 and 30103311102102.
It is not an unprimeable number, because it can be changed into a prime (30103311102121) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1129990851 + ... + 1130017490.
Almost surely, 230103311102120 is an apocalyptic number.
30103311102120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30103311102120 is an abundant number, since it is smaller than the sum of its proper divisors (70376659783200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30103311102120 is a wasteful number, since it uses less digits than its factorization.
30103311102120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2260008395 (or 2260008388 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 30103311102120 its reverse (2120111330103), we get a palindrome (32223422432223).
The spelling of 30103311102120 in words is "thirty trillion, one hundred three billion, three hundred eleven million, one hundred two thousand, one hundred twenty".
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