Base | Representation |
---|---|
bin | 111101011101110… |
… | …111111011001101 |
3 | 2122212110111021201 |
4 | 331131313323031 |
5 | 4102444211141 |
6 | 250155025501 |
7 | 34361256520 |
oct | 7535677315 |
9 | 2585414251 |
10 | 1031241421 |
11 | 48a121a41 |
12 | 24943b291 |
13 | 135858232 |
14 | 9ad60bb7 |
15 | 60803031 |
hex | 3d777ecd |
1031241421 has 16 divisors (see below), whose sum is σ = 1237415040. Its totient is φ = 840692160.
The previous prime is 1031241401. The next prime is 1031241427. The reversal of 1031241421 is 1241421301.
It is not a de Polignac number, because 1031241421 - 27 = 1031241293 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031241427) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24310 + ... + 51511.
It is an arithmetic number, because the mean of its divisors is an integer number (77338440).
Almost surely, 21031241421 is an apocalyptic number.
It is an amenable number.
1031241421 is a deficient number, since it is larger than the sum of its proper divisors (206173619).
1031241421 is an equidigital number, since it uses as much as digits as its factorization.
1031241421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75924.
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 1031241421 is about 32112.9478715362. The cubic root of 1031241421 is about 1010.3072035479.
Adding to 1031241421 its reverse (1241421301), we get a palindrome (2272662722).
The spelling of 1031241421 in words is "one billion, thirty-one million, two hundred forty-one thousand, four hundred twenty-one".
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