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8068081 = 717151449
BaseRepresentation
bin11110110001101111110001
3120011220022211
4132301233301
54031134311
6444532121
7125402050
oct36615761
916156284
108068081
11461073a
122851041
131896418
141100397
15a95821
hex7b1bf1

8068081 has 16 divisors (see below), whose sum is σ = 9849600. Its totient is φ = 6451200.

The previous prime is 8068079. The next prime is 8068127. The reversal of 8068081 is 1808608.

It is not a de Polignac number, because 8068081 - 21 = 8068079 is a prime.

It is a super-2 number, since 2×80680812 = 130187862045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8068481) 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, 17745 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (615600).

Almost surely, 28068081 is an apocalyptic number.

It is an amenable number.

8068081 is a deficient number, since it is larger than the sum of its proper divisors (1781519).

8068081 is a wasteful number, since it uses less digits than its factorization.

8068081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 8068081 is about 2840.4367621899. The cubic root of 8068081 is about 200.5657398498.

The spelling of 8068081 in words is "eight million, sixty-eight thousand, eighty-one".

Divisors: 1 7 17 119 151 449 1057 2567 3143 7633 17969 53431 67799 474593 1152583 8068081