Base | Representation |
---|---|
bin | 111101011101000… |
… | …000000000110001 |
3 | 2122212000212010111 |
4 | 331131000000301 |
5 | 4102414344101 |
6 | 250150101321 |
7 | 34356314026 |
oct | 7535000061 |
9 | 2585025114 |
10 | 1031012401 |
11 | 489a85971 |
12 | 24934a841 |
13 | 1357a7c13 |
14 | 9ad0154d |
15 | 607aa251 |
hex | 3d740031 |
1031012401 has 4 divisors (see below), whose sum is σ = 1042596900. Its totient is φ = 1019427904.
The previous prime is 1031012399. The next prime is 1031012417. The reversal of 1031012401 is 1042101301.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042101301 = 31 ⋅33616171.
It can be written as a sum of positive squares in 2 ways, for example, as 95570176 + 935442225 = 9776^2 + 30585^2 .
It is a cyclic number.
It is not a de Polignac number, because 1031012401 - 21 = 1031012399 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1031012491) 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, 5792116 + ... + 5792293.
It is an arithmetic number, because the mean of its divisors is an integer number (260649225).
Almost surely, 21031012401 is an apocalyptic number.
It is an amenable number.
1031012401 is a deficient number, since it is larger than the sum of its proper divisors (11584499).
1031012401 is an equidigital number, since it uses as much as digits as its factorization.
1031012401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11584498.
The product of its (nonzero) digits is 24, while the sum is 13.
The square root of 1031012401 is about 32109.3818221404. The cubic root of 1031012401 is about 1010.2324077140.
Adding to 1031012401 its reverse (1042101301), we get a palindrome (2073113702).
Subtracting 1031012401 from its reverse (1042101301), we obtain a square (11088900 = 33302).
The spelling of 1031012401 in words is "one billion, thirty-one million, twelve thousand, four hundred one".
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