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68901747 = 3311037193
BaseRepresentation
bin1000001101101…
…01101101110011
311210122120102120
410012311231303
5120114323442
610500445323
71464440505
oct406655563
9153576376
1068901747
11359909a2
121b0a9843
1311375985
149217d75
1560b04ec
hex41b5b73

68901747 has 16 divisors (see below), whose sum is σ = 95766528. Its totient is φ = 44015040.

The previous prime is 68901743. The next prime is 68901751. The reversal of 68901747 is 74710986.

It is an interprime number because it is at equal distance from previous prime (68901743) and next prime (68901751).

It is not a de Polignac number, because 68901747 - 22 = 68901743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68901699 and 68901708.

It is not an unprimeable number, because it can be changed into a prime (68901743) 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, 5983 + ... + 13175.

It is an arithmetic number, because the mean of its divisors is an integer number (5985408).

Almost surely, 268901747 is an apocalyptic number.

68901747 is a deficient number, since it is larger than the sum of its proper divisors (26864781).

68901747 is a wasteful number, since it uses less digits than its factorization.

68901747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 68901747 is about 8300.7076204382. The cubic root of 68901747 is about 409.9618187725.

The spelling of 68901747 in words is "sixty-eight million, nine hundred one thousand, seven hundred forty-seven".

Divisors: 1 3 31 93 103 309 3193 7193 9579 21579 222983 668949 740879 2222637 22967249 68901747