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89013081 = 3191561633
BaseRepresentation
bin1010100111000…
…11101101011001
320012111022222210
411103203231121
5140241404311
612455505333
72130412233
oct523435531
9205438883
1089013081
1146277933
1225988249
1315597981
14bb71253
157c343a6
hex54e3b59

89013081 has 8 divisors (see below), whose sum is σ = 124930720. Its totient is φ = 56218752.

The previous prime is 89013079. The next prime is 89013097. The reversal of 89013081 is 18031098.

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

It is not a de Polignac number, because 89013081 - 21 = 89013079 is a prime.

It is a super-2 number, since 2×890130812 = 15846657178225122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89013011) 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, 780760 + ... + 780873.

It is an arithmetic number, because the mean of its divisors is an integer number (15616340).

Almost surely, 289013081 is an apocalyptic number.

It is an amenable number.

89013081 is a deficient number, since it is larger than the sum of its proper divisors (35917639).

89013081 is a wasteful number, since it uses less digits than its factorization.

89013081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561655.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 89013081 is about 9434.6743981973. The cubic root of 89013081 is about 446.4963823935.

The spelling of 89013081 in words is "eighty-nine million, thirteen thousand, eighty-one".

Divisors: 1 3 19 57 1561633 4684899 29671027 89013081