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8918016481 = 1123311137067
BaseRepresentation
bin10000100111000111…
…00010000111100001
3212000111211011202201
420103203202013201
5121231003011411
64032532013201
7433665614023
oct102343420741
925014734681
108918016481
113866a95860
12188a761201
13ac17a713a
14608594013
15372dd53c1
hex2138e21e1

8918016481 has 16 divisors (see below), whose sum is σ = 10479218688. Its totient is φ = 7504635600.

The previous prime is 8918016479. The next prime is 8918016487. The reversal of 8918016481 is 1846108198.

It is not a de Polignac number, because 8918016481 - 21 = 8918016479 is a prime.

It is a super-2 number, since 2×89180164812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8918016487) 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, 560691 + ... + 576376.

It is an arithmetic number, because the mean of its divisors is an integer number (654951168).

Almost surely, 28918016481 is an apocalyptic number.

It is an amenable number.

8918016481 is a deficient number, since it is larger than the sum of its proper divisors (1561202207).

8918016481 is a wasteful number, since it uses less digits than its factorization.

8918016481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137132.

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 8918016481 is about 94435.2502035125. The cubic root of 8918016481 is about 2073.7485253542.

The spelling of 8918016481 in words is "eight billion, nine hundred eighteen million, sixteen thousand, four hundred eighty-one".

Divisors: 1 11 23 31 253 341 713 7843 1137067 12507737 26152541 35249077 287677951 387739847 810728771 8918016481