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89470049 = 606714747
BaseRepresentation
bin1010101010100…
…11010001100001
320020100112211112
411111103101201
5140401020144
612513353105
72134324424
oct525232141
9206315745
1089470049
114655a199
1225b68795
13156c7976
14bc4d9bb
157cc499e
hex5553461

89470049 has 4 divisors (see below), whose sum is σ = 89490864. Its totient is φ = 89449236.

The previous prime is 89470037. The next prime is 89470063. The reversal of 89470049 is 94007498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89470049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89469988 and 89470015.

It is not an unprimeable number, because it can be changed into a prime (89410049) 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, 1307 + ... + 13440.

It is an arithmetic number, because the mean of its divisors is an integer number (22372716).

Almost surely, 289470049 is an apocalyptic number.

It is an amenable number.

89470049 is a deficient number, since it is larger than the sum of its proper divisors (20815).

89470049 is a wasteful number, since it uses less digits than its factorization.

89470049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 89470049 is about 9458.8608722192. The cubic root of 89470049 is about 447.2591406947.

The spelling of 89470049 in words is "eighty-nine million, four hundred seventy thousand, forty-nine".

Divisors: 1 6067 14747 89470049