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90014489 = 109825821
BaseRepresentation
bin1010101110110…
…00001100011001
320021101012122222
411113120030121
5141020430424
612533153425
72142052625
oct527301431
9207335588
1090014489
11468a1244
122618b875
1315858716
14bd52185
157d80e5e
hex55d8319

90014489 has 4 divisors (see below), whose sum is σ = 90840420. Its totient is φ = 89188560.

The previous prime is 90014461. The next prime is 90014501. The reversal of 90014489 is 98441009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47334400 + 42680089 = 6880^2 + 6533^2 .

It is a cyclic number.

It is not a de Polignac number, because 90014489 - 28 = 90014233 is a prime.

It is a super-3 number, since 3×900144893 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90014459) 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 3 ways as a sum of consecutive naturals, for example, 412802 + ... + 413019.

It is an arithmetic number, because the mean of its divisors is an integer number (22710105).

Almost surely, 290014489 is an apocalyptic number.

It is an amenable number.

90014489 is a deficient number, since it is larger than the sum of its proper divisors (825931).

90014489 is a wasteful number, since it uses less digits than its factorization.

90014489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825930.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 90014489 is about 9487.5965871236. The cubic root of 90014489 is about 448.1645219110.

The spelling of 90014489 in words is "ninety million, fourteen thousand, four hundred eighty-nine".

Divisors: 1 109 825821 90014489