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8622081 = 321373693
BaseRepresentation
bin100000111001…
…000000000001
3121020001021100
4200321000001
54201401311
6504445013
7133200156
oct40710001
917201240
108622081
114959996
122a79769
131a2b630
14120622d
15b54a56
hex839001

8622081 has 12 divisors (see below), whose sum is σ = 13412308. Its totient is φ = 5305824.

The previous prime is 8622071. The next prime is 8622113. The reversal of 8622081 is 1802268.

It can be written as a sum of positive squares in 2 ways, for example, as 2073600 + 6548481 = 1440^2 + 2559^2 .

It is not a de Polignac number, because 8622081 - 26 = 8622017 is a prime.

It is a super-2 number, since 2×86220812 = 148680561541122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8622001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36730 + ... + 36963.

It is a Proth number, since it is equal to 2105 ⋅ 212 + 1 and 2105 < 212.

Almost surely, 28622081 is an apocalyptic number.

It is an amenable number.

8622081 is a deficient number, since it is larger than the sum of its proper divisors (4790227).

8622081 is a wasteful number, since it uses less digits than its factorization.

8622081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73712 (or 73709 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8622081 is about 2936.3380255005. The cubic root of 8622081 is about 205.0551586651.

The spelling of 8622081 in words is "eight million, six hundred twenty-two thousand, eighty-one".

Divisors: 1 3 9 13 39 117 73693 221079 663237 958009 2874027 8622081