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2102005413 = 321791304783
BaseRepresentation
bin111110101001010…
…0000111010100101
312102111021221100100
41331102200322211
513301103133123
6544325134313
7103042515444
oct17522407245
95374257310
102102005413
11989588862
124a7b5a399
132766408b1
1415d24cd5b
15c4811643
hex7d4a0ea5

2102005413 has 12 divisors (see below), whose sum is σ = 3053194560. Its totient is φ = 1393507176.

The previous prime is 2102005403. The next prime is 2102005417. The reversal of 2102005413 is 3145002012.

It is not a de Polignac number, because 2102005413 - 228 = 1833569957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102005417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650781 + ... + 654002.

It is an arithmetic number, because the mean of its divisors is an integer number (254432880).

Almost surely, 22102005413 is an apocalyptic number.

It is an amenable number.

2102005413 is a deficient number, since it is larger than the sum of its proper divisors (951189147).

2102005413 is a wasteful number, since it uses less digits than its factorization.

2102005413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304968 (or 1304965 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2102005413 is about 45847.6325779205. The cubic root of 2102005413 is about 1280.9866686486.

Adding to 2102005413 its reverse (3145002012), we get a palindrome (5247007425).

The spelling of 2102005413 in words is "two billion, one hundred two million, five thousand, four hundred thirteen".

Divisors: 1 3 9 179 537 1611 1304783 3914349 11743047 233556157 700668471 2102005413