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385420955 = 5107720413
BaseRepresentation
bin10110111110010…
…000111010011011
3222212020102011012
4112332100322123
51242131432310
6102124524135
712360011153
oct2676207233
9885212135
10385420955
11188618517
12a90b064b
1361b0874a
143928b763
1523c83c05
hex16f90e9b

385420955 has 8 divisors (see below), whose sum is σ = 466828272. Its totient is φ = 305454688.

The previous prime is 385420939. The next prime is 385420961. The reversal of 385420955 is 559024583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385420955 - 24 = 385420939 is a prime.

It is a super-2 number, since 2×3854209552 = 297098625106224050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 359672 + ... + 360741.

It is an arithmetic number, because the mean of its divisors is an integer number (58353534).

Almost surely, 2385420955 is an apocalyptic number.

385420955 is a deficient number, since it is larger than the sum of its proper divisors (81407317).

385420955 is a wasteful number, since it uses less digits than its factorization.

385420955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720525.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 385420955 is about 19632.1408664465. The cubic root of 385420955 is about 727.7436774980.

The spelling of 385420955 in words is "three hundred eighty-five million, four hundred twenty thousand, nine hundred fifty-five".

Divisors: 1 5 107 535 720413 3602065 77084191 385420955