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89885032025 = 5217211494193
BaseRepresentation
bin101001110110110010…
…0001011111001011001
322121000020112201201012
41103231210023321121
52433041032011100
6105143112103305
76331302110645
oct1235544137131
9277006481635
1089885032025
1135135836a38
1215506394b35
13862606a8a9
1444c9931c25
15251121c135
hex14ed90be59

89885032025 has 12 divisors (see below), whose sum is σ = 118013760252. Its totient is φ = 67678141440.

The previous prime is 89885032009. The next prime is 89885032051. The reversal of 89885032025 is 52023058898.

89885032025 = 2119962 + 2119972.

It can be written as a sum of positive squares in 6 ways, for example, as 12187081 + 89872844944 = 3491^2 + 299788^2 .

It is not a de Polignac number, because 89885032025 - 24 = 89885032009 is a prime.

It is a Duffinian 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, 105746672 + ... + 105747521.

It is an arithmetic number, because the mean of its divisors is an integer number (9834480021).

Almost surely, 289885032025 is an apocalyptic number.

89885032025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89885032025 is the 211997-th centered square number.

It is an amenable number.

89885032025 is a deficient number, since it is larger than the sum of its proper divisors (28128728227).

89885032025 is a wasteful number, since it uses less digits than its factorization.

89885032025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211494220 (or 211494215 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 89885032025 in words is "eighty-nine billion, eight hundred eighty-five million, thirty-two thousand, twenty-five".

Divisors: 1 5 17 25 85 425 211494193 1057470965 3595401281 5287354825 17977006405 89885032025