Base | Representation |
---|---|
bin | 1000001100100… |
… | …00111110010111 |
3 | 11210100220222210 |
4 | 10012100332113 |
5 | 120100020010 |
6 | 10453324503 |
7 | 1463242656 |
oct | 406207627 |
9 | 153326883 |
10 | 68751255 |
11 | 35898921 |
12 | 1b036733 |
13 | 11322321 |
14 | 91b919d |
15 | 6080b20 |
hex | 4190f97 |
68751255 has 32 divisors (see below), whose sum is σ = 115315200. Its totient is φ = 34911360.
The previous prime is 68751233. The next prime is 68751259. The reversal of 68751255 is 55215786.
It is not a de Polignac number, because 68751255 - 27 = 68751127 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68751259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120120 + ... + 120690.
It is an arithmetic number, because the mean of its divisors is an integer number (3603600).
Almost surely, 268751255 is an apocalyptic number.
68751255 is a deficient number, since it is larger than the sum of its proper divisors (46563945).
68751255 is a wasteful number, since it uses less digits than its factorization.
68751255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 951.
The product of its digits is 84000, while the sum is 39.
The square root of 68751255 is about 8291.6376548906. The cubic root of 68751255 is about 409.6631280081.
It can be divided in two parts, 68751 and 255, that added together give a triangular number (69006 = T371).
The spelling of 68751255 in words is "sixty-eight million, seven hundred fifty-one thousand, two hundred fifty-five".
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