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68543125 = 54715667
BaseRepresentation
bin1000001010111…
…10001010010101
311202222100111021
410011132022111
5120021340000
610445041141
71461415120
oct405361225
9152870437
1068543125
1135766512
121ab561b1
131127b681
1491633b7
15603e11a
hex415e295

68543125 has 20 divisors (see below), whose sum is σ = 97893664. Its totient is φ = 46998000.

The previous prime is 68543117. The next prime is 68543141. The reversal of 68543125 is 52134586.

It is not a de Polignac number, because 68543125 - 23 = 68543117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3459 + ... + 12208.

Almost surely, 268543125 is an apocalyptic number.

It is an amenable number.

68543125 is a deficient number, since it is larger than the sum of its proper divisors (29350539).

68543125 is an equidigital number, since it uses as much as digits as its factorization.

68543125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15694 (or 15679 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 68543125 is about 8279.0775452341. The cubic root of 68543125 is about 409.2493204316.

The spelling of 68543125 in words is "sixty-eight million, five hundred forty-three thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 625 875 4375 15667 78335 109669 391675 548345 1958375 2741725 9791875 13708625 68543125