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8913814569 = 3211228612
BaseRepresentation
bin10000100110100111…
…00000010000101001
3212000012220200211100
420103103200100221
5121223414031234
64032301552013
7433615113402
oct102323402051
925005820740
108913814569
113864685900
121889275609
13ac09656ba
14607bbc9a9
15372855399
hex2134e0429

8913814569 has 27 divisors (see below), whose sum is σ = 14157368407. Its totient is φ = 5400423600.

The previous prime is 8913814549. The next prime is 8913814583. The reversal of 8913814569 is 9654183198.

The square root of 8913814569 is 94413.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4982524569 + 3931290000 = 70587^2 + 62700^2 .

It is not a de Polignac number, because 8913814569 - 217 = 8913683497 is a prime.

It is a super-2 number, since 2×89138145692 (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 (8913814549) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3114199 + ... + 3117059.

Almost surely, 28913814569 is an apocalyptic number.

8913814569 is the 94413-rd square number.

8913814569 is the 47207-th centered octagonal number.

It is an amenable number.

8913814569 is a deficient number, since it is larger than the sum of its proper divisors (5243553838).

8913814569 is an equidigital number, since it uses as much as digits as its factorization.

8913814569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750 (or 2875 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The cubic root of 8913814569 is about 2073.4227773683.

The spelling of 8913814569 in words is "eight billion, nine hundred thirteen million, eight hundred fourteen thousand, five hundred sixty-nine".

Divisors: 1 3 9 11 33 99 121 363 1089 2861 8583 25749 31471 94413 283239 346181 1038543 3115629 8185321 24555963 73667889 90038531 270115593 810346779 990423841 2971271523 8913814569