Base | Representation |
---|---|
bin | 1000010010100100010… |
… | …1001010101111000001 |
3 | 111121121201021012201202 |
4 | 2010221011022233001 |
5 | 4313140311010223 |
6 | 145232302110545 |
7 | 13201243504145 |
oct | 2045105125701 |
9 | 447551235652 |
10 | 142423141313 |
11 | 55446172072 |
12 | 2372927b455 |
13 | 105798c0b1b |
14 | 6c71393225 |
15 | 3a88819428 |
hex | 212914abc1 |
142423141313 has 4 divisors (see below), whose sum is σ = 142439563860. Its totient is φ = 142406718768.
The previous prime is 142423141277. The next prime is 142423141379. The reversal of 142423141313 is 313141324241.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313141324241 = 40087 ⋅7811543.
It can be written as a sum of positive squares in 2 ways, for example, as 22580471824 + 119842669489 = 150268^2 + 346183^2 .
It is a cyclic number.
It is not a de Polignac number, because 142423141313 - 232 = 138128174017 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (142423141813) 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, 8198258 + ... + 8215611.
It is an arithmetic number, because the mean of its divisors is an integer number (35609890965).
Almost surely, 2142423141313 is an apocalyptic number.
It is an amenable number.
142423141313 is a deficient number, since it is larger than the sum of its proper divisors (16422547).
142423141313 is an equidigital number, since it uses as much as digits as its factorization.
142423141313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16422546.
The product of its digits is 6912, while the sum is 29.
Adding to 142423141313 its reverse (313141324241), we get a palindrome (455564465554).
The spelling of 142423141313 in words is "one hundred forty-two billion, four hundred twenty-three million, one hundred forty-one thousand, three hundred thirteen".
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