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89806980 = 22351496783
BaseRepresentation
bin1010101101001…
…01100010000100
320020222200000110
411112211202010
5140442310410
612524513020
72140226634
oct526454204
9206880013
1089806980
114676a34a
12260ab770
13157b5133
14bcda6c4
157d3e720
hex55a5884

89806980 has 24 divisors (see below), whose sum is σ = 251459712. Its totient is φ = 23948512.

The previous prime is 89806979. The next prime is 89807021. The reversal of 89806980 is 8960898.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748332 + ... + 748451.

It is an arithmetic number, because the mean of its divisors is an integer number (10477488).

Almost surely, 289806980 is an apocalyptic number.

It is an amenable number.

89806980 is an abundant number, since it is smaller than the sum of its proper divisors (161652732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89806980 is a wasteful number, since it uses less digits than its factorization.

89806980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496795 (or 1496793 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 89806980 is about 9476.6544729667. The cubic root of 89806980 is about 447.8198747070.

The spelling of 89806980 in words is "eighty-nine million, eight hundred six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1496783 2993566 4490349 5987132 7483915 8980698 14967830 17961396 22451745 29935660 44903490 89806980