Base | Representation |
---|---|
bin | 1110010110011… |
… | …1000100000101 |
3 | 11012021000111121 |
4 | 3211213010011 |
5 | 110402102411 |
6 | 5550033541 |
7 | 1330420624 |
oct | 345470405 |
9 | 135230447 |
10 | 60190981 |
11 | 30a81414 |
12 | 181a88b1 |
13 | c615b86 |
14 | 7dcb6bb |
15 | 543e571 |
hex | 3967105 |
60190981 has 2 divisors, whose sum is σ = 60190982. Its totient is φ = 60190980.
The previous prime is 60190961. The next prime is 60191003. The reversal of 60190981 is 18909106.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 31472100 + 28718881 = 5610^2 + 5359^2 .
It is a cyclic number.
It is not a de Polignac number, because 60190981 - 219 = 59666693 is a prime.
It is a super-2 number, since 2×601909812 = 7245908387484722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (60190901) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30095490 + 30095491.
It is an arithmetic number, because the mean of its divisors is an integer number (30095491).
Almost surely, 260190981 is an apocalyptic number.
It is an amenable number.
60190981 is a deficient number, since it is larger than the sum of its proper divisors (1).
60190981 is an equidigital number, since it uses as much as digits as its factorization.
60190981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3888, while the sum is 34.
The square root of 60190981 is about 7758.2846686623. The cubic root of 60190981 is about 391.9016938167.
The spelling of 60190981 in words is "sixty million, one hundred ninety thousand, nine hundred eighty-one".
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