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142343242130 = 2517249253717
BaseRepresentation
bin1000010010010001010…
…0011000000110010010
3111121102010220220122202
42010210110120012102
54313004332222010
6145220325403202
713166253411005
oct2044424300622
9447363826582
10142343242130
115540505a691
1223706569502
13105661975bb
146c6491553c
153a817d56a5
hex2124518192

142343242130 has 24 divisors (see below), whose sum is σ = 272176045668. Its totient is φ = 53588043008.

The previous prime is 142343242127. The next prime is 142343242157. The reversal of 142343242130 is 31242343241.

It can be written as a sum of positive squares in 6 ways, for example, as 110345545489 + 31997696641 = 332183^2 + 178879^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142343242093 and 142343242102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24623969 + ... + 24629748.

Almost surely, 2142343242130 is an apocalyptic number.

142343242130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142343242130 is a deficient number, since it is larger than the sum of its proper divisors (129832803538).

142343242130 is a wasteful number, since it uses less digits than its factorization.

142343242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49253758 (or 49253741 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 142343242130 its reverse (31242343241), we get a palindrome (173585585371).

The spelling of 142343242130 in words is "one hundred forty-two billion, three hundred forty-three million, two hundred forty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890 49253717 98507434 246268585 492537170 837313189 1674626378 4186565945 8373131890 14234324213 28468648426 71171621065 142343242130