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89808002 = 2317141653
BaseRepresentation
bin1010101101001…
…01110010000010
320020222201102022
411112211302002
5140442324002
612524521442
72140232624
oct526456202
9206881368
1089808002
1146770099
12260b0282
13157b573b
14bcdac14
157d3eba2
hex55a5c82

89808002 has 8 divisors (see below), whose sum is σ = 135137916. Its totient is φ = 44762032.

The previous prime is 89807981. The next prime is 89808007. The reversal of 89808002 is 20080898.

It can be written as a sum of positive squares in 2 ways, for example, as 87590881 + 2217121 = 9359^2 + 1489^2 .

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

It is not an unprimeable number, because it can be changed into a prime (89808007) 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, 70193 + ... + 71460.

Almost surely, 289808002 is an apocalyptic number.

89808002 is a deficient number, since it is larger than the sum of its proper divisors (45329914).

89808002 is a wasteful number, since it uses less digits than its factorization.

89808002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141972.

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

The square root of 89808002 is about 9476.7083947962. The cubic root of 89808002 is about 447.8215734249.

The spelling of 89808002 in words is "eighty-nine million, eight hundred eight thousand, two".

Divisors: 1 2 317 634 141653 283306 44904001 89808002