| Base | Representation |
|---|---|
| bin | 11111011000100001100… |
| … | …011100011001010000000 |
| 3 | 21122011122201011000121220 |
| 4 | 133120201203203022000 |
| 5 | 240313242424043020 |
| 6 | 4330424541515040 |
| 7 | 311545315131630 |
| oct | 37304143431200 |
| 9 | 7564581130556 |
| 10 | 2156636549760 |
| 11 | 761696122000 |
| 12 | 2a9b79272a80 |
| 13 | 1284a6a34444 |
| 14 | 7654b7cc6c0 |
| 15 | 3b174532240 |
| hex | 1f6218e3280 |
2156636549760 has 1024 divisors, whose sum is σ = 8922407731200. Its totient is φ = 433564876800.
The previous prime is 2156636549759. The next prime is 2156636549761. The reversal of 2156636549760 is 679456366512.
It is an interprime number because it is at equal distance from previous prime (2156636549759) and next prime (2156636549761).
It is a Harshad number since it is a multiple of its sum of digits (60).
It is a junction number, because it is equal to n+sod(n) for n = 2156636549694 and 2156636549703.
It is not an unprimeable number, because it can be changed into a prime (2156636549761) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 554545896 + ... + 554549784.
It is an arithmetic number, because the mean of its divisors is an integer number (8713288800).
Almost surely, 22156636549760 is an apocalyptic number.
2156636549760 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 2156636549760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4461203865600).
2156636549760 is an abundant number, since it is smaller than the sum of its proper divisors (6765771181440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2156636549760 is a wasteful number, since it uses less digits than its factorization.
2156636549760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3982 (or 3948 counting only the distinct ones).
The product of its (nonzero) digits is 48988800, while the sum is 60.
The spelling of 2156636549760 in words is "two trillion, one hundred fifty-six billion, six hundred thirty-six million, five hundred forty-nine thousand, seven hundred sixty".
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