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142130001423 = 31714918703777
BaseRepresentation
bin1000010001011110011…
…0111011011000001111
3111120212021200011101210
42010113212323120033
54312040240021143
6145143231105503
713161054035664
oct2042746733017
9446767604353
10142130001423
11553057537a3
1223667072293
1310530c55677
146c44487a6b
153a6cc13033
hex21179bb60f

142130001423 has 16 divisors (see below), whose sum is σ = 202000802400. Its totient is φ = 88581083136.

The previous prime is 142130001383. The next prime is 142130001439. The reversal of 142130001423 is 324100031241.

It is a de Polignac number, because none of the positive numbers 2k-142130001423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142130001423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142130001823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9344290 + ... + 9359487.

It is an arithmetic number, because the mean of its divisors is an integer number (12625050150).

Almost surely, 2142130001423 is an apocalyptic number.

142130001423 is a deficient number, since it is larger than the sum of its proper divisors (59870800977).

142130001423 is a wasteful number, since it uses less digits than its factorization.

142130001423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18703946.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 142130001423 its reverse (324100031241), we get a palindrome (466230032664).

The spelling of 142130001423 in words is "one hundred forty-two billion, one hundred thirty million, one thousand, four hundred twenty-three".

Divisors: 1 3 17 51 149 447 2533 7599 18703777 56111331 317964209 953892627 2786862773 8360588319 47376667141 142130001423