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89038878 = 2319775329
BaseRepresentation
bin1010100111010…
…10000000011110
320012112122101020
411103222000132
5140243221003
612500225010
72130550365
oct523520036
9205478336
1089038878
1146295255
122599b166
13155a6636
14bb7a7dc
157c3bd53
hex54ea01e

89038878 has 16 divisors (see below), whose sum is σ = 178984080. Its totient is φ = 29528576.

The previous prime is 89038871. The next prime is 89038897. The reversal of 89038878 is 87883098.

It is a self number, because there is not a number n which added to its sum of digits gives 89038878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89038871) 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, 36483 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (11186505).

Almost surely, 289038878 is an apocalyptic number.

89038878 is an abundant number, since it is smaller than the sum of its proper divisors (89945202).

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

89038878 is a wasteful number, since it uses less digits than its factorization.

89038878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75531.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 89038878 is about 9436.0414369586. The cubic root of 89038878 is about 446.5395114651.

The spelling of 89038878 in words is "eighty-nine million, thirty-eight thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 197 394 591 1182 75329 150658 225987 451974 14839813 29679626 44519439 89038878