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142410310421 = 236191752627
BaseRepresentation
bin1000010010100001010…
…0001110001100010101
3111121120211010100001112
42010220110032030111
54313124014413141
6145231123104405
713201026444251
oct2045024161425
9447524110045
10142410310421
11554399a9025
1223724b12105
131057704a892
146c6d7b3261
153a876327eb
hex212850e315

142410310421 has 4 divisors (see below), whose sum is σ = 148602063072. Its totient is φ = 136218557772.

The previous prime is 142410310351. The next prime is 142410310423. The reversal of 142410310421 is 124013014241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142410310421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 6191752627 = 142410310421 / (1 + 4 + 2 + 4 + 1 + 0 + 3 + 1 + 0 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142410310423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095876291 + ... + 3095876336.

It is an arithmetic number, because the mean of its divisors is an integer number (37150515768).

Almost surely, 2142410310421 is an apocalyptic number.

It is an amenable number.

142410310421 is a deficient number, since it is larger than the sum of its proper divisors (6191752651).

142410310421 is an equidigital number, since it uses as much as digits as its factorization.

142410310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191752650.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 142410310421 its reverse (124013014241), we get a palindrome (266423324662).

The spelling of 142410310421 in words is "one hundred forty-two billion, four hundred ten million, three hundred ten thousand, four hundred twenty-one".

Divisors: 1 23 6191752627 142410310421