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8989888025 = 522339153739
BaseRepresentation
bin10000101111101011…
…01100111000011001
3212012112001121222202
420113311230320121
5121402402404100
64044020255545
7435530534036
oct102765547031
925175047882
108989888025
1138a3614a28
1218aa8415b5
13b0364c791
14613d4238d
153793807d5
hex217d6ce19

8989888025 has 12 divisors (see below), whose sum is σ = 11152299600. Its totient is φ = 7188788880.

The previous prime is 8989887989. The next prime is 8989888049. The reversal of 8989888025 is 5208889898.

It is not a de Polignac number, because 8989888025 - 222 = 8985693721 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18395 + ... + 135344.

It is an arithmetic number, because the mean of its divisors is an integer number (929358300).

Almost surely, 28989888025 is an apocalyptic number.

It is an amenable number.

8989888025 is a deficient number, since it is larger than the sum of its proper divisors (2162411575).

8989888025 is a wasteful number, since it uses less digits than its factorization.

8989888025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156088 (or 156083 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 65.

The square root of 8989888025 is about 94815.0200390212. The cubic root of 8989888025 is about 2079.3045031242.

The spelling of 8989888025 in words is "eight billion, nine hundred eighty-nine million, eight hundred eighty-eight thousand, twenty-five".

Divisors: 1 5 25 2339 11695 58475 153739 768695 3843475 359595521 1797977605 8989888025