Base | Representation |
---|---|
bin | 111010011000111000… |
… | …1101100110111111111 |
3 | 102222122120211111202021 |
4 | 1310301301230313333 |
5 | 4023244111222111 |
6 | 133334124541011 |
7 | 12026155210615 |
oct | 1646161546777 |
9 | 388576744667 |
10 | 125389164031 |
11 | 491a4a0689a |
12 | 203746b1767 |
13 | ba93862321 |
14 | 60d6d8b6b5 |
15 | 33dd17ed71 |
hex | 1d31c6cdff |
125389164031 has 8 divisors (see below), whose sum is σ = 125988940944. Its totient is φ = 124790814720.
The previous prime is 125389164029. The next prime is 125389164041. The reversal of 125389164031 is 130461983521.
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 125389164031 - 21 = 125389164029 is a prime.
It is a super-2 number, since 2×1253891640312 (a number of 23 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 (125389164001) 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, 180610 + ... + 532351.
It is an arithmetic number, because the mean of its divisors is an integer number (15748617618).
Almost surely, 2125389164031 is an apocalyptic number.
125389164031 is a deficient number, since it is larger than the sum of its proper divisors (599776913).
125389164031 is an equidigital number, since it uses as much as digits as its factorization.
125389164031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 713801.
The product of its (nonzero) digits is 155520, while the sum is 43.
The spelling of 125389164031 in words is "one hundred twenty-five billion, three hundred eighty-nine million, one hundred sixty-four thousand, thirty-one".
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