Base | Representation |
---|---|
bin | 11101110110000000111… |
… | …10000110110101010111 |
3 | 10122000211001222001121212 |
4 | 32323000132012311113 |
5 | 113300040410143411 |
6 | 2103024320132035 |
7 | 134041100345423 |
oct | 16730036066527 |
9 | 3560731861555 |
10 | 1025431334231 |
11 | 365979289797 |
12 | 14689aa6701b |
13 | 7590bc949c5 |
14 | 378b9bcdb83 |
15 | 1ba1923b68b |
hex | eec0786d57 |
1025431334231 has 8 divisors (see below), whose sum is σ = 1035341097984. Its totient is φ = 1015568873080.
The previous prime is 1025431334111. The next prime is 1025431334251. The reversal of 1025431334231 is 1324331345201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1025431334231 - 234 = 1008251465047 is a prime.
It is a super-2 number, since 2×10254313342312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1025431334251) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11782085 + ... + 11868798.
It is an arithmetic number, because the mean of its divisors is an integer number (129417637248).
Almost surely, 21025431334231 is an apocalyptic number.
1025431334231 is a deficient number, since it is larger than the sum of its proper divisors (9909763753).
1025431334231 is a wasteful number, since it uses less digits than its factorization.
1025431334231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23651301.
The product of its (nonzero) digits is 25920, while the sum is 32.
Adding to 1025431334231 its reverse (1324331345201), we get a palindrome (2349762679432).
The spelling of 1025431334231 in words is "one trillion, twenty-five billion, four hundred thirty-one million, three hundred thirty-four thousand, two hundred thirty-one".
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