Base | Representation |
---|---|
bin | 1101000101100… |
… | …10001010010101 |
3 | 21122120111010011 |
4 | 12202302022111 |
5 | 211101003103 |
6 | 14521000221 |
7 | 2502062062 |
oct | 642621225 |
9 | 248514104 |
10 | 109781653 |
11 | 56a72643 |
12 | 30923071 |
13 | 19989b77 |
14 | 10819c69 |
15 | 9987d6d |
hex | 68b2295 |
109781653 has 2 divisors, whose sum is σ = 109781654. Its totient is φ = 109781652.
The previous prime is 109781611. The next prime is 109781663. The reversal of 109781653 is 356187901.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 108201604 + 1580049 = 10402^2 + 1257^2 .
It is a cyclic number.
It is not a de Polignac number, because 109781653 - 29 = 109781141 is a prime.
It is a super-2 number, since 2×1097816532 = 24104022670824818, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (109781663) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54890826 + 54890827.
It is an arithmetic number, because the mean of its divisors is an integer number (54890827).
Almost surely, 2109781653 is an apocalyptic number.
It is an amenable number.
109781653 is a deficient number, since it is larger than the sum of its proper divisors (1).
109781653 is an equidigital number, since it uses as much as digits as its factorization.
109781653 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 45360, while the sum is 40.
The square root of 109781653 is about 10477.6740262331. The cubic root of 109781653 is about 478.8247477860.
The spelling of 109781653 in words is "one hundred nine million, seven hundred eighty-one thousand, six hundred fifty-three".
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