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89275681 = 1133724083
BaseRepresentation
bin1010101001000…
…11110100100001
320012222200012201
411110203310201
5140323310211
612505253201
72132554645
oct524436441
9205880181
1089275681
1146437160
1225a94201
131565a361
14bbdcc25
157c870c1
hex5523d21

89275681 has 8 divisors (see below), whose sum is σ = 97684704. Its totient is φ = 80915520.

The previous prime is 89275657. The next prime is 89275733. The reversal of 89275681 is 18657298.

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 89275681 - 27 = 89275553 is a prime.

It is a super-2 number, since 2×892756812 = 15940294436027522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89275621) 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, 8335 + ... + 15748.

It is an arithmetic number, because the mean of its divisors is an integer number (12210588).

Almost surely, 289275681 is an apocalyptic number.

It is an amenable number.

89275681 is a deficient number, since it is larger than the sum of its proper divisors (8409023).

89275681 is a wasteful number, since it uses less digits than its factorization.

89275681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24431.

The product of its digits is 241920, while the sum is 46.

The square root of 89275681 is about 9448.5808987382. The cubic root of 89275681 is about 446.9350251806.

The spelling of 89275681 in words is "eighty-nine million, two hundred seventy-five thousand, six hundred eighty-one".

Divisors: 1 11 337 3707 24083 264913 8115971 89275681