Base | Representation |
---|---|
bin | 1000001011100… |
… | …00111101011101 |
3 | 11210010021010010 |
4 | 10011300331131 |
5 | 120031321000 |
6 | 10450433433 |
7 | 1462155450 |
oct | 405607535 |
9 | 153107103 |
10 | 68620125 |
11 | 35809352 |
12 | 1ab92879 |
13 | 112a7732 |
14 | 9183497 |
15 | 6056d50 |
hex | 4170f5d |
68620125 has 32 divisors (see below), whose sum is σ = 130500864. Its totient is φ = 31368000.
The previous prime is 68620121. The next prime is 68620159. The reversal of 68620125 is 52102686.
It is not a de Polignac number, because 68620125 - 22 = 68620121 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68620092 and 68620101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68620121) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10446 + ... + 15695.
It is an arithmetic number, because the mean of its divisors is an integer number (4078152).
Almost surely, 268620125 is an apocalyptic number.
It is an amenable number.
68620125 is a deficient number, since it is larger than the sum of its proper divisors (61880739).
68620125 is a wasteful number, since it uses less digits than its factorization.
68620125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26166 (or 26156 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 68620125 is about 8283.7265164900. The cubic root of 68620125 is about 409.4025106310.
The spelling of 68620125 in words is "sixty-eight million, six hundred twenty thousand, one hundred twenty-five".
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