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385232085 = 33572914057
BaseRepresentation
bin10110111101100…
…010110011010101
3222211212211002000
4112331202303111
51242104411320
6102120505513
712355263420
oct2675426325
9884784060
10385232085
111884a9627
12a901b299
1361a707a4
143923c9b7
1523c47c90
hex16f62cd5

385232085 has 64 divisors (see below), whose sum is σ = 809740800. Its totient is φ = 170021376.

The previous prime is 385232059. The next prime is 385232117. The reversal of 385232085 is 580232583.

385232085 is a `hidden beast` number, since 38 + 523 + 20 + 85 = 666.

It is not a de Polignac number, because 385232085 - 29 = 385231573 is a prime.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 20377 + ... + 34433.

It is an arithmetic number, because the mean of its divisors is an integer number (12652200).

Almost surely, 2385232085 is an apocalyptic number.

385232085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

385232085 is an abundant number, since it is smaller than the sum of its proper divisors (424508715).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385232085 is a wasteful number, since it uses less digits than its factorization.

385232085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107 (or 14101 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 385232085 is about 19627.3300527606. The cubic root of 385232085 is about 727.6247846318.

It can be divided in two parts, 3852 and 32085, that added together give a cube (35937 = 333).

The spelling of 385232085 in words is "three hundred eighty-five million, two hundred thirty-two thousand, eighty-five".

Divisors: 1 3 5 7 9 15 21 27 29 35 45 63 87 105 135 145 189 203 261 315 435 609 783 945 1015 1305 1827 3045 3915 5481 9135 14057 27405 42171 70285 98399 126513 210855 295197 379539 407653 491995 632565 885591 1222959 1475985 1897695 2038265 2656773 2853571 3668877 4427955 6114795 8560713 11006631 13283865 14267855 18344385 25682139 42803565 55033155 77046417 128410695 385232085