Base | Representation |
---|---|
bin | 1001001101011001000000… |
… | …01001000100101011010001 |
3 | 2122201000011121122210112102 |
4 | 10212230200021010223101 |
5 | 10123244140333100001 |
6 | 111023153504410145 |
7 | 4160052225140252 |
oct | 446544011045321 |
9 | 78630147583472 |
10 | 20251310050001 |
11 | 64a8594633238 |
12 | 2330a0a916955 |
13 | b3b8c88b9134 |
14 | 500250a48b29 |
15 | 251bb2bc7e6b |
hex | 126b20244ad1 |
20251310050001 has 8 divisors (see below), whose sum is σ = 21442634965224. Its totient is φ = 19059993066240.
The previous prime is 20251310049947. The next prime is 20251310050007. The reversal of 20251310050001 is 10005001315202.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 419028360976 + 19832281689025 = 647324^2 + 4453345^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-20251310050001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20251310050007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747011 + ... + 7385303.
It is an arithmetic number, because the mean of its divisors is an integer number (2680329370653).
Almost surely, 220251310050001 is an apocalyptic number.
It is an amenable number.
20251310050001 is a deficient number, since it is larger than the sum of its proper divisors (1191324915223).
20251310050001 is a wasteful number, since it uses less digits than its factorization.
20251310050001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3965731.
The product of its (nonzero) digits is 300, while the sum is 20.
Adding to 20251310050001 its reverse (10005001315202), we get a palindrome (30256311365203).
The spelling of 20251310050001 in words is "twenty trillion, two hundred fifty-one billion, three hundred ten million, fifty thousand, one".
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