Base | Representation |
---|---|
bin | 1110111111101… |
… | …01110001000001 |
3 | 22202200122121020 |
4 | 13133311301001 |
5 | 224200142301 |
6 | 20252020053 |
7 | 3055113351 |
oct | 737656101 |
9 | 282618536 |
10 | 125787201 |
11 | 65004871 |
12 | 36161629 |
13 | 200a20c7 |
14 | 129c4b61 |
15 | b09a436 |
hex | 77f5c41 |
125787201 has 16 divisors (see below), whose sum is σ = 177061440. Its totient is φ = 79431552.
The previous prime is 125787191. The next prime is 125787203. The reversal of 125787201 is 102787521.
It is not a de Polignac number, because 125787201 - 214 = 125770817 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125787203) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17521 + ... + 23633.
It is an arithmetic number, because the mean of its divisors is an integer number (11066340).
Almost surely, 2125787201 is an apocalyptic number.
It is an amenable number.
125787201 is a deficient number, since it is larger than the sum of its proper divisors (51274239).
125787201 is an frugal number, since it uses more digits than its factorization.
125787201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6173 (or 6135 counting only the distinct ones).
The product of its (nonzero) digits is 7840, while the sum is 33.
The square root of 125787201 is about 11215.4893339524. The cubic root of 125787201 is about 501.0474056839.
The spelling of 125787201 in words is "one hundred twenty-five million, seven hundred eighty-seven thousand, two hundred one".
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