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385258527 = 3283515741
BaseRepresentation
bin10110111101101…
…001010000011111
3222211221011100100
4112331221100133
51242111233102
6102121232143
712355433463
oct2675512037
9884834310
10385258527
11188517485
12a9032653
1361a7c834
14392484a3
1523c50a1c
hex16f6941f

385258527 has 12 divisors (see below), whose sum is σ = 563190264. Its totient is φ = 253744080.

The previous prime is 385258507. The next prime is 385258553. The reversal of 385258527 is 725852583.

It is not a de Polignac number, because 385258527 - 26 = 385258463 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385258507) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257124 + ... + 258617.

It is an arithmetic number, because the mean of its divisors is an integer number (46932522).

Almost surely, 2385258527 is an apocalyptic number.

385258527 is a deficient number, since it is larger than the sum of its proper divisors (177931737).

385258527 is a wasteful number, since it uses less digits than its factorization.

385258527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515830 (or 515827 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 385258527 is about 19628.0036427549. The cubic root of 385258527 is about 727.6414320981.

The spelling of 385258527 in words is "three hundred eighty-five million, two hundred fifty-eight thousand, five hundred twenty-seven".

Divisors: 1 3 9 83 249 747 515741 1547223 4641669 42806503 128419509 385258527