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3205149361 = 6478815623
BaseRepresentation
bin1011111100001010…
…1011001010110001
322021101001110100121
42333002223022301
523031004234421
61250013250241
7142266214531
oct27702531261
98241043317
103205149361
1113a5250177
12755493981
133c10525ab
142259694c1
1513b5b8d41
hexbf0ab2b1

3205149361 has 8 divisors (see below), whose sum is σ = 3214318464. Its totient is φ = 3195994560.

The previous prime is 3205149347. The next prime is 3205149407. The reversal of 3205149361 is 1639415023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3205149361 - 25 = 3205149329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3205149301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 567196 + ... + 572818.

It is an arithmetic number, because the mean of its divisors is an integer number (401789808).

Almost surely, 23205149361 is an apocalyptic number.

It is an amenable number.

3205149361 is a deficient number, since it is larger than the sum of its proper divisors (9169103).

3205149361 is an equidigital number, since it uses as much as digits as its factorization.

3205149361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3205149361 is about 56614.0385505221. The cubic root of 3205149361 is about 1474.4026095244.

The spelling of 3205149361 in words is "three billion, two hundred five million, one hundred forty-nine thousand, three hundred sixty-one".

Divisors: 1 647 881 5623 570007 3638081 4953863 3205149361