| Base | Representation |
|---|---|
| bin | 11111111110011110100… |
| … | …111110111001100100000 |
| 3 | 21210001211212002022220200 |
| 4 | 133332132213313030200 |
| 5 | 242000223210204310 |
| 6 | 4401244455505200 |
| 7 | 314520234615642 |
| oct | 37763647671440 |
| 9 | 7701755068820 |
| 10 | 2197389538080 |
| 11 | 7779a9121340 |
| 12 | 2b5a51388200 |
| 13 | 12c29cab9709 |
| 14 | 784d5da8892 |
| 15 | 3c25c1a69c0 |
| hex | 1ff9e9f7320 |
2197389538080 has 288 divisors, whose sum is σ = 8210483543808. Its totient is φ = 530733772800.
The previous prime is 2197389538079. The next prime is 2197389538081. The reversal of 2197389538080 is 808359837912.
2197389538080 is a `hidden beast` number, since 2 + 1 + 97 + 3 + 8 + 9 + 538 + 0 + 8 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (2197389538079) and next prime (2197389538081).
It is a tau number, because it is divible by the number of its divisors (288).
It is a junction number, because it is equal to n+sod(n) for n = 2197389537999 and 2197389538017.
It is not an unprimeable number, because it can be changed into a prime (2197389538081) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4036692 + ... + 4548588.
It is an arithmetic number, because the mean of its divisors is an integer number (28508623416).
Almost surely, 22197389538080 is an apocalyptic number.
2197389538080 is a gapful number since it is divisible by the number (20) 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 2197389538080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4105241771904).
2197389538080 is an abundant number, since it is smaller than the sum of its proper divisors (6013094005728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2197389538080 is a wasteful number, since it uses less digits than its factorization.
2197389538080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 512200 (or 512189 counting only the distinct ones).
The product of its (nonzero) digits is 26127360, while the sum is 63.
The spelling of 2197389538080 in words is "two trillion, one hundred ninety-seven billion, three hundred eighty-nine million, five hundred thirty-eight thousand, eighty".
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