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89660948 = 22135332533
BaseRepresentation
bin1010101100000…
…01111000010100
320020201020200212
411112001320110
5140423122243
612521424552
72136051116
oct526017024
9206636625
1089660948
114667a663
122603b158
1315763820
14bc9d3b6
157d11318
hex5581e14

89660948 has 24 divisors (see below), whose sum is σ = 172169928. Its totient is φ = 40599936.

The previous prime is 89660933. The next prime is 89660951. The reversal of 89660948 is 84906698.

It can be written as a sum of positive squares in 4 ways, for example, as 3579664 + 86081284 = 1892^2 + 9278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89660896 and 89660905.

It is a congruent number.

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, 13511 + ... + 19022.

It is an arithmetic number, because the mean of its divisors is an integer number (7173747).

Almost surely, 289660948 is an apocalyptic number.

It is an amenable number.

89660948 is a deficient number, since it is larger than the sum of its proper divisors (82508980).

89660948 is a wasteful number, since it uses less digits than its factorization.

89660948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32603 (or 32601 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 89660948 is about 9468.9465095120. The cubic root of 89660948 is about 447.5770149276.

The spelling of 89660948 in words is "eighty-nine million, six hundred sixty thousand, nine hundred forty-eight".

Divisors: 1 2 4 13 26 52 53 106 212 689 1378 2756 32533 65066 130132 422929 845858 1691716 1724249 3448498 6896996 22415237 44830474 89660948