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180309001 is a prime number
BaseRepresentation
bin10101011111101…
…00110000001001
3110120021122110011
422233310300021
5332124342001
625520351521
74316413135
oct1257646011
9416248404
10180309001
1192863904
12504755a1
132b481722
1419d383c5
1510c69d51
hexabf4c09

180309001 has 2 divisors, whose sum is σ = 180309002. Its totient is φ = 180309000.

The previous prime is 180308981. The next prime is 180309007. The reversal of 180309001 is 100903081.

180309001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177422400 + 2886601 = 13320^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 180309001 - 29 = 180308489 is a prime.

It is a super-2 number, since 2×1803090012 = 65022671683236002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (180309007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90154500 + 90154501.

It is an arithmetic number, because the mean of its divisors is an integer number (90154501).

Almost surely, 2180309001 is an apocalyptic number.

It is an amenable number.

180309001 is a deficient number, since it is larger than the sum of its proper divisors (1).

180309001 is an equidigital number, since it uses as much as digits as its factorization.

180309001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 180309001 is about 13427.9187143801. The cubic root of 180309001 is about 564.9445227070.

The spelling of 180309001 in words is "one hundred eighty million, three hundred nine thousand, one".