| Base | Representation |
|---|---|
| bin | 10111100101011110110… |
| … | …000111000100101000000 |
| 3 | 12201221112211010010120220 |
| 4 | 113211132300320211000 |
| 5 | 203023340342343202 |
| 6 | 3240325401103040 |
| 7 | 225045515210400 |
| oct | 27453660704500 |
| 9 | 5657484103526 |
| 10 | 1620792543552 |
| 11 | 575413156186 |
| 12 | 222154187a80 |
| 13 | b9abc872950 |
| 14 | 58637d5a800 |
| 15 | 2c261c02abc |
| hex | 1795ec38940 |
1620792543552 has 672 divisors, whose sum is σ = 5935716847872. Its totient is φ = 384813563904.
The previous prime is 1620792543457. The next prime is 1620792543553. The reversal of 1620792543552 is 2553452970261.
It is a tau number, because it is divible by the number of its divisors (672).
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a junction number, because it is equal to n+sod(n) for n = 1620792543495 and 1620792543504.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1620792543553) by changing a digit.
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 95 ways as a sum of consecutive naturals, for example, 47803918 + ... + 47837810.
It is an arithmetic number, because the mean of its divisors is an integer number (8832911976).
Almost surely, 21620792543552 is an apocalyptic number.
1620792543552 is a gapful number since it is divisible by the number (12) 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 1620792543552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2967858423936).
1620792543552 is an abundant number, since it is smaller than the sum of its proper divisors (4314924304320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1620792543552 is a wasteful number, since it uses less digits than its factorization.
1620792543552 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33975 (or 33958 counting only the distinct ones).
The product of its (nonzero) digits is 4536000, while the sum is 51.
The spelling of 1620792543552 in words is "one trillion, six hundred twenty billion, seven hundred ninety-two million, five hundred forty-three thousand, five hundred fifty-two".
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