Base | Representation |
---|---|
bin | 10000111110101… |
… | …01001111100001 |
3 | 100221000020212200 |
4 | 20133111033201 |
5 | 242430244301 |
6 | 22044443413 |
7 | 3346434213 |
oct | 1037251741 |
9 | 327006780 |
10 | 142431201 |
11 | 73442740 |
12 | 3b849569 |
13 | 2367bb23 |
14 | 14cb85b3 |
15 | c786c86 |
hex | 87d53e1 |
142431201 has 24 divisors (see below), whose sum is σ = 236252640. Its totient is φ = 81777600.
The previous prime is 142431187. The next prime is 142431221. The reversal of 142431201 is 102134241.
It is not a de Polignac number, because 142431201 - 26 = 142431137 is a prime.
It is not an unprimeable number, because it can be changed into a prime (142431221) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35980 + ... + 39741.
It is an arithmetic number, because the mean of its divisors is an integer number (9843860).
Almost surely, 2142431201 is an apocalyptic number.
142431201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
142431201 is a deficient number, since it is larger than the sum of its proper divisors (93821439).
142431201 is a wasteful number, since it uses less digits than its factorization.
142431201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75757 (or 75754 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 142431201 is about 11934.4543654077. The cubic root of 142431201 is about 522.2378908650.
Adding to 142431201 its reverse (102134241), we get a palindrome (244565442).
The spelling of 142431201 in words is "one hundred forty-two million, four hundred thirty-one thousand, two hundred one".
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