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68393259 = 3211690841
BaseRepresentation
bin1000001001110…
…01100100101011
311202200201220200
410010321210223
5120002041014
610441523243
71460222154
oct404714453
9152621820
1068393259
1135673960
121aaa3523
13112283ac
14912492b
15600ea09
hex413992b

68393259 has 12 divisors (see below), whose sum is σ = 107771352. Its totient is φ = 41450400.

The previous prime is 68393257. The next prime is 68393309. The reversal of 68393259 is 95239386.

68393259 is a `hidden beast` number, since 6 + 8 + 393 + 259 = 666.

It is not a de Polignac number, because 68393259 - 21 = 68393257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68393251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345322 + ... + 345519.

It is an arithmetic number, because the mean of its divisors is an integer number (8980946).

Almost surely, 268393259 is an apocalyptic number.

68393259 is a deficient number, since it is larger than the sum of its proper divisors (39378093).

68393259 is a wasteful number, since it uses less digits than its factorization.

68393259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690858 (or 690855 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 68393259 is about 8270.0217049292. The cubic root of 68393259 is about 408.9508352896.

The spelling of 68393259 in words is "sixty-eight million, three hundred ninety-three thousand, two hundred fifty-nine".

Divisors: 1 3 9 11 33 99 690841 2072523 6217569 7599251 22797753 68393259