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8343081 = 34103001
BaseRepresentation
bin11111110100111000101001
3120200212120000
4133310320221
54113434311
6454453213
7130625565
oct37647051
916625500
108343081
11478930a
122964209
131961646
1411726a5
15aec056
hex7f4e29

8343081 has 10 divisors (see below), whose sum is σ = 12463242. Its totient is φ = 5562000.

The previous prime is 8343079. The next prime is 8343091. The reversal of 8343081 is 1803438.

It can be written as a sum of positive squares in only one way, i.e., 5103081 + 3240000 = 2259^2 + 1800^2 .

It is not a de Polignac number, because 8343081 - 21 = 8343079 is a prime.

It is a super-2 number, since 2×83430812 = 139214001145122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

8343081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8343091) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51420 + ... + 51581.

Almost surely, 28343081 is an apocalyptic number.

8343081 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8343081 is a deficient number, since it is larger than the sum of its proper divisors (4120161).

8343081 is a wasteful number, since it uses less digits than its factorization.

8343081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103013 (or 103004 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8343081 is about 2888.4391979060. The cubic root of 8343081 is about 202.8190854207.

The spelling of 8343081 in words is "eight million, three hundred forty-three thousand, eighty-one".

Divisors: 1 3 9 27 81 103001 309003 927009 2781027 8343081