| Base | Representation |
|---|---|
| bin | 10001010011101000011… |
| … | …110100011100110001010 |
| 3 | 11012200211011000210020000 |
| 4 | 101103220132203212022 |
| 5 | 123441202143013210 |
| 6 | 2310210112343430 |
| 7 | 151632146143230 |
| oct | 21235036434612 |
| 9 | 4180734023200 |
| 10 | 1189311297930 |
| 11 | 41942524a018 |
| 12 | 1725b5b44b76 |
| 13 | 881c8015722 |
| 14 | 417c4b2c950 |
| 15 | 20e0b63cac0 |
| hex | 114e87a398a |
1189311297930 has 640 divisors, whose sum is σ = 3937386309120. Its totient is φ = 252238012416.
The previous prime is 1189311297907. The next prime is 1189311298003. The reversal of 1189311297930 is 397921139811.
1189311297930 is a `hidden beast` number, since 1 + 1 + 8 + 9 + 311 + 297 + 9 + 30 = 666.
It is a super-2 number, since 2×11893112979302 (a number of 25 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2061197802 + ... + 2061198378.
It is an arithmetic number, because the mean of its divisors is an integer number (6152166108).
Almost surely, 21189311297930 is an apocalyptic number.
1189311297930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1189311297930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968693154560).
1189311297930 is an abundant number, since it is smaller than the sum of its proper divisors (2748075011190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1189311297930 is an equidigital number, since it uses as much as digits as its factorization.
1189311297930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 713 (or 666 counting only the distinct ones).
The product of its (nonzero) digits is 734832, while the sum is 54.
The spelling of 1189311297930 in words is "one trillion, one hundred eighty-nine billion, three hundred eleven million, two hundred ninety-seven thousand, nine hundred thirty".
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