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8628081 = 371141911
BaseRepresentation
bin100000111010…
…011101110001
3121020100111120
4200322131301
54202044311
6504532453
7133223520
oct40723561
917210446
108628081
114963450
122a81129
131a31297
1412084b7
15b56706
hex83a771

8628081 has 32 divisors (see below), whose sum is σ = 14708736. Its totient is φ = 4368000.

The previous prime is 8628077. The next prime is 8628097. The reversal of 8628081 is 1808268.

8628081 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8628081 - 22 = 8628077 is a prime.

It is a super-2 number, since 2×86280812 = 148887563485122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

8628081 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (8628031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9016 + ... + 9926.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 28628081 is an apocalyptic number.

It is an amenable number.

8628081 is a deficient number, since it is larger than the sum of its proper divisors (6080655).

8628081 is a wasteful number, since it uses less digits than its factorization.

8628081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 8628081 is about 2937.3595285562. The cubic root of 8628081 is about 205.1027127561.

The spelling of 8628081 in words is "eight million, six hundred twenty-eight thousand, eighty-one".

Divisors: 1 3 7 11 21 33 41 77 123 231 287 451 861 911 1353 2733 3157 6377 9471 10021 19131 30063 37351 70147 112053 210441 261457 410861 784371 1232583 2876027 8628081