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387962085 = 3573694877
BaseRepresentation
bin10111000111111…
…101010011100101
31000001000111221010
4113013331103211
51243304241320
6102255212433
712420423540
oct2707752345
91001014833
10387962085
11189aa3725
12a9b17119
13624b8284
143974d857
15240d6ae0
hex171fd4e5

387962085 has 16 divisors (see below), whose sum is σ = 709416576. Its totient is φ = 177354048.

The previous prime is 387962033. The next prime is 387962089. The reversal of 387962085 is 580269783.

It is not a de Polignac number, because 387962085 - 218 = 387699941 is a prime.

It is a super-4 number, since 4×3879620854 (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387962089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847334 + ... + 1847543.

It is an arithmetic number, because the mean of its divisors is an integer number (44338536).

Almost surely, 2387962085 is an apocalyptic number.

387962085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

387962085 is a deficient number, since it is larger than the sum of its proper divisors (321454491).

387962085 is a wasteful number, since it uses less digits than its factorization.

387962085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694892.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 387962085 is about 19696.7531588331. The cubic root of 387962085 is about 729.3395446346.

The spelling of 387962085 in words is "three hundred eighty-seven million, nine hundred sixty-two thousand, eighty-five".

Divisors: 1 3 5 7 15 21 35 105 3694877 11084631 18474385 25864139 55423155 77592417 129320695 387962085