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68679711 = 3317149629
BaseRepresentation
bin1000001011111…
…11100000011111
311210020021212000
410011333200133
5120040222321
610452013343
71462524252
oct405774037
9153207760
1068679711
113584a0a1
121b001253
13112c88a9
14919b099
156069826
hex417f81f

68679711 has 16 divisors (see below), whose sum is σ = 107733600. Its totient is φ = 43092864.

The previous prime is 68679703. The next prime is 68679713. The reversal of 68679711 is 11797686.

It is not a de Polignac number, because 68679711 - 23 = 68679703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68679713) 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, 74356 + ... + 75273.

It is an arithmetic number, because the mean of its divisors is an integer number (6733350).

Almost surely, 268679711 is an apocalyptic number.

68679711 is a deficient number, since it is larger than the sum of its proper divisors (39053889).

68679711 is a wasteful number, since it uses less digits than its factorization.

68679711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149655 (or 149649 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 68679711 is about 8287.3223057873. The cubic root of 68679711 is about 409.5209773365.

The spelling of 68679711 in words is "sixty-eight million, six hundred seventy-nine thousand, seven hundred eleven".

Divisors: 1 3 9 17 27 51 153 459 149629 448887 1346661 2543693 4039983 7631079 22893237 68679711