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180396049 is a prime number
BaseRepresentation
bin10101100000010…
…10000000010001
3110120110001212011
422300022000101
5332140133144
625522302521
74320225001
oct1260120021
9416401764
10180396049
1192913249
12504b7a41
132b4b2232
1419d5c001
1510c85a34
hexac0a011

180396049 has 2 divisors, whose sum is σ = 180396050. Its totient is φ = 180396048.

The previous prime is 180395977. The next prime is 180396059. The reversal of 180396049 is 940693081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162180225 + 18215824 = 12735^2 + 4268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-180396049 is a prime.

It is not a weakly prime, because it can be changed into another prime (180396059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90198024 + 90198025.

It is an arithmetic number, because the mean of its divisors is an integer number (90198025).

Almost surely, 2180396049 is an apocalyptic number.

It is an amenable number.

180396049 is a deficient number, since it is larger than the sum of its proper divisors (1).

180396049 is an equidigital number, since it uses as much as digits as its factorization.

180396049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 180396049 is about 13431.1596297565. The cubic root of 180396049 is about 565.0354210701.

The spelling of 180396049 in words is "one hundred eighty million, three hundred ninety-six thousand, forty-nine".