Base | Representation |
---|---|
bin | 100111001101011110… |
… | …011111111100110011 |
3 | 11000200011101201202022 |
4 | 213031132133330303 |
5 | 1142211104431011 |
6 | 31201424342055 |
7 | 3020220231350 |
oct | 471536377463 |
9 | 130604351668 |
10 | 42102030131 |
11 | 16945553427 |
12 | 81aba7492b |
13 | 3c7c701485 |
14 | 2075825627 |
15 | 11663008db |
hex | 9cd79ff33 |
42102030131 has 8 divisors (see below), whose sum is σ = 49024466784. Its totient is φ = 35406558720.
The previous prime is 42102030101. The next prime is 42102030143. The reversal of 42102030131 is 13103020124.
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 42102030131 - 210 = 42102029107 is a prime.
It is a super-2 number, since 2×421020301312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (42102030101) 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, 56740910 + ... + 56741651.
It is an arithmetic number, because the mean of its divisors is an integer number (6128058348).
Almost surely, 242102030131 is an apocalyptic number.
42102030131 is a deficient number, since it is larger than the sum of its proper divisors (6922436653).
42102030131 is a wasteful number, since it uses less digits than its factorization.
42102030131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113482621.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 42102030131 its reverse (13103020124), we get a palindrome (55205050255).
The spelling of 42102030131 in words is "forty-two billion, one hundred two million, thirty thousand, one hundred thirty-one".
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