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89407619 = 7127163617
BaseRepresentation
bin1010101010001…
…00000010000011
320020020101012022
411111010002003
5140342020434
612512152055
72133644420
oct525040203
9206211168
1089407619
11465172a4
1225b3862b
13156a5422
14bc34d47
157cb122e
hex5544083

89407619 has 16 divisors (see below), whose sum is σ = 103784448. Its totient is φ = 75442752.

The previous prime is 89407561. The next prime is 89407649. The reversal of 89407619 is 91670498.

It is not a de Polignac number, because 89407619 - 216 = 89342083 is a prime.

It is a super-2 number, since 2×894076192 = 15987444670498322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89407619.

It is not an unprimeable number, because it can be changed into a prime (89407649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144599 + ... + 145215.

It is an arithmetic number, because the mean of its divisors is an integer number (6486528).

Almost surely, 289407619 is an apocalyptic number.

89407619 is a deficient number, since it is larger than the sum of its proper divisors (14376829).

89407619 is a wasteful number, since it uses less digits than its factorization.

89407619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 89407619 is about 9455.5602160845. The cubic root of 89407619 is about 447.1550876792.

The spelling of 89407619 in words is "eighty-nine million, four hundred seven thousand, six hundred nineteen".

Divisors: 1 7 127 163 617 889 1141 4319 20701 78359 100571 144907 548513 703997 12772517 89407619