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2897660913 = 3732815997
BaseRepresentation
bin1010110010110110…
…1100101111110001
321110221110102111120
42230231230233301
521413300122123
61155310532453
7131543466000
oct25455545761
97427412446
102897660913
111257721594
1268a507129
13372432174
141d6ba6c37
1511e5cb2e3
hexacb6cbf1

2897660913 has 16 divisors (see below), whose sum is σ = 4505596800. Its totient is φ = 1655805648.

The previous prime is 2897660903. The next prime is 2897660933. The reversal of 2897660913 is 3190667982.

It is a de Polignac number, because none of the positive numbers 2k-2897660913 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2897660903) by changing a digit.

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, 1406970 + ... + 1409027.

It is an arithmetic number, because the mean of its divisors is an integer number (281599800).

Almost surely, 22897660913 is an apocalyptic number.

It is an amenable number.

2897660913 is a deficient number, since it is larger than the sum of its proper divisors (1607935887).

2897660913 is an equidigital number, since it uses as much as digits as its factorization.

2897660913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816021 (or 2816007 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 2897660913 is about 53829.9258126927. The cubic root of 2897660913 is about 1425.6596372331.

The spelling of 2897660913 in words is "two billion, eight hundred ninety-seven million, six hundred sixty thousand, nine hundred thirteen".

Divisors: 1 3 7 21 49 147 343 1029 2815997 8447991 19711979 59135937 137983853 413951559 965886971 2897660913