Base | Representation |
---|---|
bin | 111101001001101… |
… | …101000101010011 |
3 | 2122111111212111011 |
4 | 331021231011103 |
5 | 4100121013011 |
6 | 245445431351 |
7 | 34265315626 |
oct | 7511550523 |
9 | 2574455434 |
10 | 1025954131 |
11 | 487140584 |
12 | 24770b557 |
13 | 134726767 |
14 | 9a385dbd |
15 | 6010b621 |
hex | 3d26d153 |
1025954131 has 4 divisors (see below), whose sum is σ = 1086304392. Its totient is φ = 965603872.
The previous prime is 1025954113. The next prime is 1025954161. The reversal of 1025954131 is 1314595201.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1025954131 - 27 = 1025954003 is a prime.
It is a super-2 number, since 2×10259541312 = 2105163757831930322, which contains 22 as substring.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1025954093 and 1025954102.
It is not an unprimeable number, because it can be changed into a prime (1025954161) 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, 30175105 + ... + 30175138.
It is an arithmetic number, because the mean of its divisors is an integer number (271576098).
Almost surely, 21025954131 is an apocalyptic number.
1025954131 is a deficient number, since it is larger than the sum of its proper divisors (60350261).
1025954131 is an equidigital number, since it uses as much as digits as its factorization.
1025954131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60350260.
The product of its (nonzero) digits is 5400, while the sum is 31.
The square root of 1025954131 is about 32030.5187438480. The cubic root of 1025954131 is about 1008.5775915574.
The spelling of 1025954131 in words is "one billion, twenty-five million, nine hundred fifty-four thousand, one hundred thirty-one".
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