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89871340 = 22513345659
BaseRepresentation
bin1010101101101…
…01001111101100
320021002221022011
411112311033230
5141001340330
612530131004
72140615366
oct526651754
9207087264
1089871340
1146803739
1226120a64
1315808510
14bd15d36
157d5382a
hex55b53ec

89871340 has 24 divisors (see below), whose sum is σ = 203248080. Its totient is φ = 33183168.

The previous prime is 89871323. The next prime is 89871359. The reversal of 89871340 is 4317898.

It is a junction number, because it is equal to n+sod(n) for n = 89871293 and 89871302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172570 + ... + 173089.

It is an arithmetic number, because the mean of its divisors is an integer number (8468670).

Almost surely, 289871340 is an apocalyptic number.

It is an amenable number.

89871340 is an abundant number, since it is smaller than the sum of its proper divisors (113376740).

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

89871340 is a wasteful number, since it uses less digits than its factorization.

89871340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345681 (or 345679 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 89871340 is about 9480.0495779294. The cubic root of 89871340 is about 447.9268255805.

The spelling of 89871340 in words is "eighty-nine million, eight hundred seventy-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 345659 691318 1382636 1728295 3456590 4493567 6913180 8987134 17974268 22467835 44935670 89871340