Base | Representation |
---|---|
bin | 10101001011101111… |
… | …10111100101111001 |
3 | 1002100120222011022022 |
4 | 22211313313211321 |
5 | 141242420231412 |
6 | 5120303004225 |
7 | 551554245056 |
oct | 124567674571 |
9 | 32316864268 |
10 | 11372820857 |
11 | 490672a702 |
12 | 2254899675 |
13 | 10c3240bc8 |
14 | 79c5dc02d |
15 | 468684a72 |
hex | 2a5df7979 |
11372820857 has 2 divisors, whose sum is σ = 11372820858. Its totient is φ = 11372820856.
The previous prime is 11372820853. The next prime is 11372820881. The reversal of 11372820857 is 75802827311.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10562906176 + 809914681 = 102776^2 + 28459^2 .
It is a cyclic number.
It is not a de Polignac number, because 11372820857 - 22 = 11372820853 is a prime.
It is not a weakly prime, because it can be changed into another prime (11372820853) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5686410428 + 5686410429.
It is an arithmetic number, because the mean of its divisors is an integer number (5686410429).
Almost surely, 211372820857 is an apocalyptic number.
It is an amenable number.
11372820857 is a deficient number, since it is larger than the sum of its proper divisors (1).
11372820857 is an equidigital number, since it uses as much as digits as its factorization.
11372820857 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 188160, while the sum is 44.
The spelling of 11372820857 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, eight hundred fifty-seven".
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