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89988886 = 21319118121
BaseRepresentation
bin1010101110100…
…01111100010110
320021022220112201
411113101330112
5141014121021
612532435114
72141615161
oct527217426
9207286481
1089988886
1146883a89
1226178a9a
1315849b80
14bd46ad8
157d78591
hex55d1f16

89988886 has 16 divisors (see below), whose sum is σ = 146135808. Its totient is φ = 41313600.

The previous prime is 89988881. The next prime is 89988887. The reversal of 89988886 is 68888998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89988881) 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, 4095 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (9133488).

Almost surely, 289988886 is an apocalyptic number.

89988886 is a deficient number, since it is larger than the sum of its proper divisors (56146922).

89988886 is a wasteful number, since it uses less digits than its factorization.

89988886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18327.

The product of its digits is 15925248, while the sum is 64.

The square root of 89988886 is about 9486.2472031884. The cubic root of 89988886 is about 448.1220271066.

The spelling of 89988886 in words is "eighty-nine million, nine hundred eighty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 13 26 191 382 2483 4966 18121 36242 235573 471146 3461111 6922222 44994443 89988886