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68698241 = 174041073
BaseRepresentation
bin1000001100001…
…00000010000001
311210021020021022
410012010002001
5120041320431
610452235225
71462632263
oct406040201
9153236238
1068698241
1135862007
121b00bb15
1311304161
1491a3b33
15607007b
hex4184081

68698241 has 4 divisors (see below), whose sum is σ = 72739332. Its totient is φ = 64657152.

The previous prime is 68698193. The next prime is 68698271. The reversal of 68698241 is 14289686.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14289686 = 27144843.

It can be written as a sum of positive squares in 2 ways, for example, as 33640000 + 35058241 = 5800^2 + 5921^2 .

It is a cyclic number.

It is not a de Polignac number, because 68698241 - 226 = 1589377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68698192 and 68698201.

It is not an unprimeable number, because it can be changed into a prime (68698271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020520 + ... + 2020553.

It is an arithmetic number, because the mean of its divisors is an integer number (18184833).

Almost surely, 268698241 is an apocalyptic number.

It is an amenable number.

68698241 is a deficient number, since it is larger than the sum of its proper divisors (4041091).

68698241 is a wasteful number, since it uses less digits than its factorization.

68698241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041090.

The product of its digits is 165888, while the sum is 44.

The square root of 68698241 is about 8288.4402030780. The cubic root of 68698241 is about 409.5578040365.

The spelling of 68698241 in words is "sixty-eight million, six hundred ninety-eight thousand, two hundred forty-one".

Divisors: 1 17 4041073 68698241