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385464271 is a prime number
BaseRepresentation
bin10110111110011…
…011011111001111
3222212022121120111
4112332123133033
51242134324041
6102125500451
712360251353
oct2676333717
9885277514
10385464271
11188648015
12a9111727
1361b2238a
143929d463
1523c91981
hex16f9b7cf

385464271 has 2 divisors, whose sum is σ = 385464272. Its totient is φ = 385464270.

The previous prime is 385464269. The next prime is 385464281. The reversal of 385464271 is 172464583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385464271 - 21 = 385464269 is a prime.

It is a super-2 number, since 2×3854642712 = 297165408435122882, which contains 22 as substring.

Together with 385464269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385464281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192732135 + 192732136.

It is an arithmetic number, because the mean of its divisors is an integer number (192732136).

Almost surely, 2385464271 is an apocalyptic number.

385464271 is a deficient number, since it is larger than the sum of its proper divisors (1).

385464271 is an equidigital number, since it uses as much as digits as its factorization.

385464271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 385464271 is about 19633.2440263956. The cubic root of 385464271 is about 727.7709392611.

The spelling of 385464271 in words is "three hundred eighty-five million, four hundred sixty-four thousand, two hundred seventy-one".