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89788141 = 409321937
BaseRepresentation
bin1010101101000…
…00111011101101
320020221201011201
411112200323231
5140441210031
612524245501
72140121002
oct526407355
9206851151
1089788141
1146757183
12260a0891
13157a96a1
14bcd38a9
157d38d61
hex55a0eed

89788141 has 4 divisors (see below), whose sum is σ = 89814172. Its totient is φ = 89762112.

The previous prime is 89788133. The next prime is 89788151. The reversal of 89788141 is 14188798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25050025 + 64738116 = 5005^2 + 8046^2 .

It is a cyclic number.

It is not a de Polignac number, because 89788141 - 23 = 89788133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89788091 and 89788100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89788151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6876 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (22453543).

Almost surely, 289788141 is an apocalyptic number.

It is an amenable number.

89788141 is a deficient number, since it is larger than the sum of its proper divisors (26031).

89788141 is a wasteful number, since it uses less digits than its factorization.

89788141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26030.

The product of its digits is 129024, while the sum is 46.

The square root of 89788141 is about 9475.6604519157. The cubic root of 89788141 is about 447.7885591434.

The spelling of 89788141 in words is "eighty-nine million, seven hundred eighty-eight thousand, one hundred forty-one".

Divisors: 1 4093 21937 89788141