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60190981 is a prime number
BaseRepresentation
bin1110010110011…
…1000100000101
311012021000111121
43211213010011
5110402102411
65550033541
71330420624
oct345470405
9135230447
1060190981
1130a81414
12181a88b1
13c615b86
147dcb6bb
15543e571
hex3967105

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".