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89280000080 = 2451116000001
BaseRepresentation
bin101001100100110000…
…0001011000001010000
322112110002001220220122
41103021200023001100
52430321140000310
6105003100125412
76310304323265
oct1231140130120
9275402056818
1089280000080
1134955261537
1215377836868
13855a8cc81b
14446d43926c
1524c8058555
hex14c980b050

89280000080 has 20 divisors (see below), whose sum is σ = 207576000372. Its totient is φ = 35712000000.

The previous prime is 89280000071. The next prime is 89280000109. The reversal of 89280000080 is 8000008298.

It can be written as a sum of positive squares in 2 ways, for example, as 57534738496 + 31745261584 = 239864^2 + 178172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557999921 + ... + 558000080.

Almost surely, 289280000080 is an apocalyptic number.

89280000080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89280000080 is an abundant number, since it is smaller than the sum of its proper divisors (118296000292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89280000080 is a wasteful number, since it uses less digits than its factorization.

89280000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116000014 (or 1116000008 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 89280000080 in words is "eighty-nine billion, two hundred eighty million, eighty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 40 80 1116000001 2232000002 4464000004 5580000005 8928000008 11160000010 17856000016 22320000020 44640000040 89280000080