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89500729 = 5311031531
BaseRepresentation
bin1010101010110…
…10110000111001
320020102002220211
411111122300321
5140403010404
612514151121
72134513033
oct525326071
9206362824
1089500729
114658024a
1225b824a1
1315708916
14bc5ac53
157ccdb04
hex555ac39

89500729 has 8 divisors (see below), whose sum is σ = 91331712. Its totient is φ = 87675120.

The previous prime is 89500711. The next prime is 89500739. The reversal of 89500729 is 92700598.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89500729 - 29 = 89500217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89500691 and 89500700.

It is not an unprimeable number, because it can be changed into a prime (89500739) 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, 57694 + ... + 59224.

It is an arithmetic number, because the mean of its divisors is an integer number (11416464).

Almost surely, 289500729 is an apocalyptic number.

It is an amenable number.

89500729 is a deficient number, since it is larger than the sum of its proper divisors (1830983).

89500729 is a wasteful number, since it uses less digits than its factorization.

89500729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 89500729 is about 9460.4824929810. The cubic root of 89500729 is about 447.3102577722.

The spelling of 89500729 in words is "eighty-nine million, five hundred thousand, seven hundred twenty-nine".

Divisors: 1 53 1103 1531 58459 81143 1688693 89500729