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389471205 = 3534077621
BaseRepresentation
bin10111001101101…
…101101111100101
31000010212012001110
4113031231233211
51244201034310
6102351415233
712436310364
oct2715555745
91003765043
10389471205
1118a934532
12aa524519
13628c6146
1439a237db
15242d3d20
hex1736dbe5

389471205 has 16 divisors (see below), whose sum is σ = 623418624. Its totient is φ = 207629760.

The previous prime is 389471191. The next prime is 389471219. The reversal of 389471205 is 502174983.

It is an interprime number because it is at equal distance from previous prime (389471191) and next prime (389471219).

It is not a de Polignac number, because 389471205 - 210 = 389470181 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47295 + ... + 54915.

It is an arithmetic number, because the mean of its divisors is an integer number (38963664).

Almost surely, 2389471205 is an apocalyptic number.

It is an amenable number.

389471205 is a deficient number, since it is larger than the sum of its proper divisors (233947419).

389471205 is a wasteful number, since it uses less digits than its factorization.

389471205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 389471205 is about 19735.0248289684. The cubic root of 389471205 is about 730.2839984627.

The spelling of 389471205 in words is "three hundred eighty-nine million, four hundred seventy-one thousand, two hundred five".

Divisors: 1 3 5 15 3407 7621 10221 17035 22863 38105 51105 114315 25964747 77894241 129823735 389471205