| Base | Representation |
|---|---|
| bin | 110101101101010… |
| … | …1100101000001000 |
| 3 | 11122121002020122200 |
| 4 | 1223122230220020 |
| 5 | 12142323120043 |
| 6 | 454454320200 |
| 7 | 62442053451 |
| oct | 15332545010 |
| 9 | 4577066580 |
| 10 | 1802160648 |
| 11 | 8452aaa72 |
| 12 | 423659060 |
| 13 | 229498662 |
| 14 | 1314ba128 |
| 15 | a83337d3 |
| hex | 6b6aca08 |
1802160648 has 36 divisors (see below), whose sum is σ = 4881827535. Its totient is φ = 600600144.
The previous prime is 1802160641. The next prime is 1802160649. The reversal of 1802160648 is 8460612081.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
1802160648 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 1 + 6 + 0 + 648 = 666.
It can be written as a sum of positive squares in only one way, i.e., 901080324 + 901080324 = 30018^2 + 30018^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=30018.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1802160641) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 357715 + ... + 362717.
Almost surely, 21802160648 is an apocalyptic number.
1802160648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1802160648 is an abundant number, since it is smaller than the sum of its proper divisors (3079666887).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1802160648 is an frugal number, since it uses more digits than its factorization.
1802160648 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10018 (or 5008 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 1802160648 is about 42451.8627153156. The cubic root of 1802160648 is about 1216.9269266297.
Multiplying 1802160648 by its product of nonzero digits (18432), we get a square (33217425063936 = 57634562).
The spelling of 1802160648 in words is "one billion, eight hundred two million, one hundred sixty thousand, six hundred forty-eight".
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