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385233057 = 33111916791
BaseRepresentation
bin10110111101100…
…011000010100001
3222211212212102000
4112331203002201
51242104424212
6102120514213
712355266306
oct2675430241
9884785360
10385233057
111884aa330
12a901b969
1361a71071
143923d0ad
1523c481dc
hex16f630a1

385233057 has 32 divisors (see below), whose sum is σ = 625950720. Its totient is φ = 232218000.

The previous prime is 385233047. The next prime is 385233061. The reversal of 385233057 is 750332583.

It is not a de Polignac number, because 385233057 - 27 = 385232929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385233047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53332 + ... + 60122.

It is an arithmetic number, because the mean of its divisors is an integer number (19560960).

Almost surely, 2385233057 is an apocalyptic number.

It is an amenable number.

385233057 is a deficient number, since it is larger than the sum of its proper divisors (240717663).

385233057 is a wasteful number, since it uses less digits than its factorization.

385233057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002 (or 6996 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 385233057 is about 19627.3548141363. The cubic root of 385233057 is about 727.6253966012.

The spelling of 385233057 in words is "three hundred eighty-five million, two hundred thirty-three thousand, fifty-seven".

Divisors: 1 3 9 11 27 33 99 191 297 573 1719 2101 5157 6303 6791 18909 20373 56727 61119 74701 183357 224103 672309 1297081 2016927 3891243 11673729 14267891 35021187 42803673 128411019 385233057