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68884673 = 11131273793
BaseRepresentation
bin1000001101100…
…01100011000001
311210121201000012
410012301203001
5120113302143
610500234305
71464336644
oct406614301
9153551005
1068884673
113597a090
121b09b995
131136ac80
149211a5b
1560aa418
hex41b18c1

68884673 has 16 divisors (see below), whose sum is σ = 81586176. Its totient is φ = 57335040.

The previous prime is 68884619. The next prime is 68884679. The reversal of 68884673 is 37648886.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68884673 - 212 = 68880577 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 (68884679) 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, 16265 + ... + 20057.

It is an arithmetic number, because the mean of its divisors is an integer number (5099136).

Almost surely, 268884673 is an apocalyptic number.

It is an amenable number.

68884673 is a deficient number, since it is larger than the sum of its proper divisors (12701503).

68884673 is a wasteful number, since it uses less digits than its factorization.

68884673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944.

The product of its digits is 1548288, while the sum is 50.

The square root of 68884673 is about 8299.6790901817. The cubic root of 68884673 is about 409.9279528370.

The spelling of 68884673 in words is "sixty-eight million, eight hundred eighty-four thousand, six hundred seventy-three".

Divisors: 1 11 13 127 143 1397 1651 3793 18161 41723 49309 481711 542399 5298821 6262243 68884673