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20400143101 = 1310714665811
BaseRepresentation
bin10010111111111100…
…010111101011111101
31221122201110122101121
4102333330113223331
5313234414034401
613212141510541
71321351232602
oct227774275375
957581418347
1020400143101
1187193924a8
123b53b72451
131c015693c0
14db74c66a9
157e5e5bca1
hex4bff17afd

20400143101 has 8 divisors (see below), whose sum is σ = 22174707744. Its totient is φ = 18654910320.

The previous prime is 20400143087. The next prime is 20400143129. The reversal of 20400143101 is 10134100402.

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 20400143101 - 215 = 20400110333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400143171) 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, 7331515 + ... + 7334296.

It is an arithmetic number, because the mean of its divisors is an integer number (2771838468).

Almost surely, 220400143101 is an apocalyptic number.

It is an amenable number.

20400143101 is a deficient number, since it is larger than the sum of its proper divisors (1774564643).

20400143101 is a wasteful number, since it uses less digits than its factorization.

20400143101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14665931.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20400143101 its reverse (10134100402), we get a palindrome (30534243503).

The spelling of 20400143101 in words is "twenty billion, four hundred million, one hundred forty-three thousand, one hundred one".

Divisors: 1 13 107 1391 14665811 190655543 1569241777 20400143101