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10001031311 = 19571921839
BaseRepresentation
bin10010101000001101…
…11010000010001111
3221210222201000211002
421110012322002033
5130440231000221
64332220450515
7502556235455
oct112406720217
927728630732
1010001031311
114272359937
121b313a9a3b
13c34c8ba0b
146ac3509d5
153d801380b
hex2541ba08f

10001031311 has 8 divisors (see below), whose sum is σ = 10545849600. Its totient is φ = 9458057880.

The previous prime is 10001031233. The next prime is 10001031323. The reversal of 10001031311 is 11313010001.

It is a happy number.

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

It is not a de Polignac number, because 10001031311 - 214 = 10001014927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001031292 and 10001031301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001031331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450071 + ... + 471768.

It is an arithmetic number, because the mean of its divisors is an integer number (1318231200).

Almost surely, 210001031311 is an apocalyptic number.

10001031311 is a deficient number, since it is larger than the sum of its proper divisors (544818289).

10001031311 is an equidigital number, since it uses as much as digits as its factorization.

10001031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922429.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 10001031311 its reverse (11313010001), we get a palindrome (21314041312).

The spelling of 10001031311 in words is "ten billion, one million, thirty-one thousand, three hundred eleven".

Divisors: 1 19 571 10849 921839 17514941 526370069 10001031311