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BaseRepresentation
bin1010101001011…
…00010011001001
320020001102211221
411110230103021
5140330413114
612510122041
72133061126
oct524542311
9206042757
1089310409
1146460261
1225ab0321
13156700c6
14bc0b74d
157c92524
hex552c4c9

89310409 has 2 divisors, whose sum is σ = 89310410. Its totient is φ = 89310408.

The previous prime is 89310371. The next prime is 89310413. The reversal of 89310409 is 90401398.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 38502025 = 7128^2 + 6205^2 .

It is a cyclic number.

It is not a de Polignac number, because 89310409 - 215 = 89277641 is a prime.

It is not a weakly prime, because it can be changed into another prime (89310479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44655204 + 44655205.

It is an arithmetic number, because the mean of its divisors is an integer number (44655205).

Almost surely, 289310409 is an apocalyptic number.

It is an amenable number.

89310409 is a deficient number, since it is larger than the sum of its proper divisors (1).

89310409 is an equidigital number, since it uses as much as digits as its factorization.

89310409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 89310409 is about 9450.4184563436. The cubic root of 89310409 is about 446.9929698424.

The spelling of 89310409 in words is "eighty-nine million, three hundred ten thousand, four hundred nine".