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5005004991 = 372293313547
BaseRepresentation
bin1001010100101001…
…00101000010111111
3110220210210121010020
410222110211002333
540222240124431
62144350343223
7235012561200
oct45224450277
913823717106
105005004991
112139216368
12b781bab13
13619bc1a1c
14356a055a7
151e45e4696
hex12a5250bf

5005004991 has 48 divisors (see below), whose sum is σ = 8057082240. Its totient is φ = 2752263360.

The previous prime is 5005004981. The next prime is 5005005007. The reversal of 5005004991 is 1994005005.

It is not a de Polignac number, because 5005004991 - 25 = 5005004959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5005004981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1409280 + ... + 1412826.

It is an arithmetic number, because the mean of its divisors is an integer number (167855880).

Almost surely, 25005004991 is an apocalyptic number.

5005004991 is a deficient number, since it is larger than the sum of its proper divisors (3052077249).

5005004991 is a wasteful number, since it uses less digits than its factorization.

5005004991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924 (or 3917 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 5005004991 is about 70746.0598973540. The cubic root of 5005004991 is about 1710.5463173539.

Adding to 5005004991 its reverse (1994005005), we get a palindrome (6999009996).

The spelling of 5005004991 in words is "five billion, five million, four thousand, nine hundred ninety-one".

Divisors: 1 3 7 21 29 49 87 147 203 331 609 993 1421 2317 3547 4263 6951 9599 10641 16219 24829 28797 48657 67193 74487 102863 173803 201579 308589 470351 521409 720041 1174057 1411053 2160123 3522171 5040287 8218399 15120861 24655197 34047653 57528793 102142959 172586379 238333571 715000713 1668334997 5005004991