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89413915 = 553337411
BaseRepresentation
bin1010101010001…
…01100100011011
320020020200211111
411111011210123
5140342221130
612512241151
72134001653
oct525054433
9206220744
1089413915
1146520aa8
1225b401b7
13156a8256
14bc37363
157cb302a
hex554591b

89413915 has 8 divisors (see below), whose sum is σ = 109321488. Its totient is φ = 70181280.

The previous prime is 89413913. The next prime is 89414027. The reversal of 89413915 is 51931498.

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

It is not a de Polignac number, because 89413915 - 21 = 89413913 is a prime.

It is a super-4 number, since 4×894139154 (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89413913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168441 + ... + 168970.

It is an arithmetic number, because the mean of its divisors is an integer number (13665186).

Almost surely, 289413915 is an apocalyptic number.

89413915 is a deficient number, since it is larger than the sum of its proper divisors (19907573).

89413915 is a wasteful number, since it uses less digits than its factorization.

89413915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337469.

The product of its digits is 38880, while the sum is 40.

The square root of 89413915 is about 9455.8931360290. The cubic root of 89413915 is about 447.1655835123.

The spelling of 89413915 in words is "eighty-nine million, four hundred thirteen thousand, nine hundred fifteen".

Divisors: 1 5 53 265 337411 1687055 17882783 89413915