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180472319 is a prime number
BaseRepresentation
bin10101100000111…
…00100111111111
3110120120221110222
422300130213333
5332200103234
625524051555
74320663236
oct1260344777
9416527428
10180472319
1192965585
1250533bbb
132b50ab71
1419d7bb1d
1510c9d42e
hexac1c9ff

180472319 has 2 divisors, whose sum is σ = 180472320. Its totient is φ = 180472318.

The previous prime is 180472277. The next prime is 180472321. The reversal of 180472319 is 913274081.

It is a strong prime.

It is an emirp because it is prime and its reverse (913274081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180472319 - 220 = 179423743 is a prime.

It is a super-2 number, since 2×1804723192 = 65140515850475522, which contains 22 as substring.

Together with 180472321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180472379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90236159 + 90236160.

It is an arithmetic number, because the mean of its divisors is an integer number (90236160).

Almost surely, 2180472319 is an apocalyptic number.

180472319 is a deficient number, since it is larger than the sum of its proper divisors (1).

180472319 is an equidigital number, since it uses as much as digits as its factorization.

180472319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 180472319 is about 13433.9986228971. The cubic root of 180472319 is about 565.1150406623.

The spelling of 180472319 in words is "one hundred eighty million, four hundred seventy-two thousand, three hundred nineteen".