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68254625 = 534211297
BaseRepresentation
bin1000001000101…
…11101110100001
311202102200202002
410010113232201
5114433122000
610434533345
71456104035
oct404275641
9152380662
1068254625
113558978a
121aa37255
13111aa26a
1490ca1c5
155ed38d5
hex4117ba1

68254625 has 16 divisors (see below), whose sum is σ = 85449936. Its totient is φ = 54432000.

The previous prime is 68254621. The next prime is 68254649. The reversal of 68254625 is 52645286.

It can be written as a sum of positive squares in 8 ways, for example, as 21687649 + 46566976 = 4657^2 + 6824^2 .

It is not a de Polignac number, because 68254625 - 22 = 68254621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68254621) 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, 51977 + ... + 53273.

It is an arithmetic number, because the mean of its divisors is an integer number (5340621).

Almost surely, 268254625 is an apocalyptic number.

It is an amenable number.

68254625 is a deficient number, since it is larger than the sum of its proper divisors (17195311).

68254625 is a wasteful number, since it uses less digits than its factorization.

68254625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1723 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 68254625 is about 8261.6357339210. The cubic root of 68254625 is about 408.6743322105.

The spelling of 68254625 in words is "sixty-eight million, two hundred fifty-four thousand, six hundred twenty-five".

Divisors: 1 5 25 125 421 1297 2105 6485 10525 32425 52625 162125 546037 2730185 13650925 68254625