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89153681 = 1923204013
BaseRepresentation
bin1010101000001…
…10000010010001
320012202110212012
411110012002101
5140310404211
612502512305
72131536161
oct524060221
9205673765
1089153681
1146363531
1225a35695
1315616976
14bbaa5a1
157c60d8b
hex5506091

89153681 has 8 divisors (see below), whose sum is σ = 97926720. Its totient is φ = 80788752.

The previous prime is 89153677. The next prime is 89153693. The reversal of 89153681 is 18635198.

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 89153681 - 22 = 89153677 is a prime.

It is a super-2 number, since 2×891536812 = 15896757671699522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89153641) 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, 101570 + ... + 102443.

It is an arithmetic number, because the mean of its divisors is an integer number (12240840).

Almost surely, 289153681 is an apocalyptic number.

It is an amenable number.

89153681 is a deficient number, since it is larger than the sum of its proper divisors (8773039).

89153681 is a wasteful number, since it uses less digits than its factorization.

89153681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204055.

The product of its digits is 51840, while the sum is 41.

The square root of 89153681 is about 9442.1226956654. The cubic root of 89153681 is about 446.7313454889.

The spelling of 89153681 in words is "eighty-nine million, one hundred fifty-three thousand, six hundred eighty-one".

Divisors: 1 19 23 437 204013 3876247 4692299 89153681