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20099040913 = 74643618413
BaseRepresentation
bin10010101101111111…
…110000011010010001
31220212201220001211201
4102231333300122101
5312130323302123
613122224111201
71311034012630
oct225577603221
956781801751
1020099040913
118584425a16
123a8b165501
131b84073a23
14d89507517
157c97d15ad
hex4adff0691

20099040913 has 8 divisors (see below), whose sum is σ = 22975316928. Its totient is φ = 17224011024.

The previous prime is 20099040887. The next prime is 20099040919. The reversal of 20099040913 is 31904099002.

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 20099040913 - 225 = 20065486481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20099040919) 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 7 ways as a sum of consecutive naturals, for example, 276706 + ... + 341707.

It is an arithmetic number, because the mean of its divisors is an integer number (2871914616).

Almost surely, 220099040913 is an apocalyptic number.

It is an amenable number.

20099040913 is a deficient number, since it is larger than the sum of its proper divisors (2876276015).

20099040913 is an equidigital number, since it uses as much as digits as its factorization.

20099040913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623063.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 20099040913 in words is "twenty billion, ninety-nine million, forty thousand, nine hundred thirteen".

Divisors: 1 7 4643 32501 618413 4328891 2871291559 20099040913