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8794669021 = 29312197169
BaseRepresentation
bin10000011000011001…
…11111111111011101
3211200220201110212021
420030030333333131
5121002413402041
64012404140141
7430640311315
oct101414777735
924626643767
108794669021
1138033a8006
121855397651
13aa207a688
145d6046445
1536716ccd1
hex20c33ffdd

8794669021 has 8 divisors (see below), whose sum is σ = 9100942200. Its totient is φ = 8488596480.

The previous prime is 8794669019. The next prime is 8794669049. The reversal of 8794669021 is 1209664978.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12355225 + 8782313796 = 3515^2 + 93714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8794669021 - 21 = 8794669019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8794669021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8794669421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41925 + ... + 139093.

It is an arithmetic number, because the mean of its divisors is an integer number (1137617775).

Almost surely, 28794669021 is an apocalyptic number.

It is an amenable number.

8794669021 is a deficient number, since it is larger than the sum of its proper divisors (306273179).

8794669021 is a wasteful number, since it uses less digits than its factorization.

8794669021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100319.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 8794669021 is about 93779.8966783393. The cubic root of 8794669021 is about 2064.1432479407.

The spelling of 8794669021 in words is "eight billion, seven hundred ninety-four million, six hundred sixty-nine thousand, twenty-one".

Divisors: 1 29 3121 90509 97169 2817901 303264449 8794669021