Base | Representation |
---|---|
bin | 1110010100010… |
… | …01011101001001 |
3 | 22100222202011101 |
4 | 13022021131021 |
5 | 221221210211 |
6 | 15530101401 |
7 | 2655560521 |
oct | 712113511 |
9 | 270882141 |
10 | 120100681 |
11 | 61880468 |
12 | 3427a861 |
13 | 1bb609bc |
14 | 11d44681 |
15 | a8255c1 |
hex | 7289749 |
120100681 has 2 divisors, whose sum is σ = 120100682. Its totient is φ = 120100680.
The previous prime is 120100667. The next prime is 120100693. The reversal of 120100681 is 186001021.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 82646281 + 37454400 = 9091^2 + 6120^2 .
It is a cyclic number.
It is not a de Polignac number, because 120100681 - 217 = 119969609 is a prime.
It is a super-2 number, since 2×1201006812 = 28848347153327522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (120100661) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050340 + 60050341.
It is an arithmetic number, because the mean of its divisors is an integer number (60050341).
Almost surely, 2120100681 is an apocalyptic number.
It is an amenable number.
120100681 is a deficient number, since it is larger than the sum of its proper divisors (1).
120100681 is an equidigital number, since it uses as much as digits as its factorization.
120100681 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96, while the sum is 19.
The square root of 120100681 is about 10959.0456245058. The cubic root of 120100681 is about 493.3803211373.
The spelling of 120100681 in words is "one hundred twenty million, one hundred thousand, six hundred eighty-one".
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