Base | Representation |
---|---|
bin | 111101000111110… |
… | …010000010010011 |
3 | 2122110120021010111 |
4 | 331013302002103 |
5 | 4100003401011 |
6 | 245430542151 |
7 | 34261116346 |
oct | 7507620223 |
9 | 2573507114 |
10 | 1025450131 |
11 | 486926952 |
12 | 247507957 |
13 | 1345ab234 |
14 | 9a29445d |
15 | 6005c121 |
hex | 3d1f2093 |
1025450131 has 4 divisors (see below), whose sum is σ = 1026673200. Its totient is φ = 1024227064.
The previous prime is 1025450123. The next prime is 1025450137. The reversal of 1025450131 is 1310545201.
It is a happy number.
1025450131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310545201 = 7 ⋅187220743.
It is a cyclic number.
It is not a de Polignac number, because 1025450131 - 23 = 1025450123 is a prime.
It is a super-2 number, since 2×10254501312 = 2103095942335834322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1025450137) 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, 610276 + ... + 611953.
It is an arithmetic number, because the mean of its divisors is an integer number (256668300).
Almost surely, 21025450131 is an apocalyptic number.
1025450131 is a deficient number, since it is larger than the sum of its proper divisors (1223069).
1025450131 is an equidigital number, since it uses as much as digits as its factorization.
1025450131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1223068.
The product of its (nonzero) digits is 600, while the sum is 22.
The square root of 1025450131 is about 32022.6502806998. The cubic root of 1025450131 is about 1008.4124099145.
Adding to 1025450131 its reverse (1310545201), we get a palindrome (2335995332).
The spelling of 1025450131 in words is "one billion, twenty-five million, four hundred fifty thousand, one hundred thirty-one".
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