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8083881 = 3613853
BaseRepresentation
bin11110110101100110101001
3120012201000000
4132311212221
54032141011
6445133213
7125466111
oct36654651
916181000
108083881
1146215a3
12285a209
1318a0680
141106041
15a9a356
hex7b59a9

8083881 has 28 divisors (see below), whose sum is σ = 13067908. Its totient is φ = 4968864.

The previous prime is 8083877. The next prime is 8083897. The reversal of 8083881 is 1883808.

It can be written as a sum of positive squares in 2 ways, for example, as 793881 + 7290000 = 891^2 + 2700^2 .

It is not a de Polignac number, because 8083881 - 22 = 8083877 is a prime.

It is a super-2 number, since 2×80838812 = 130698264044322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8083811) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9051 + ... + 9903.

It is an arithmetic number, because the mean of its divisors is an integer number (466711).

Almost surely, 28083881 is an apocalyptic number.

8083881 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8083881 is a deficient number, since it is larger than the sum of its proper divisors (4984027).

8083881 is an equidigital number, since it uses as much as digits as its factorization.

8083881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 8083881 is about 2843.2166642731. The cubic root of 8083881 is about 200.6965794024.

The spelling of 8083881 in words is "eight million, eighty-three thousand, eight hundred eighty-one".

Divisors: 1 3 9 13 27 39 81 117 243 351 729 853 1053 2559 3159 7677 9477 11089 23031 33267 69093 99801 207279 299403 621837 898209 2694627 8083881