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90470271 = 336782171
BaseRepresentation
bin1010110010001…
…11011101111111
320022020100212210
411121013131333
5141130022041
612551031503
72145661503
oct531073577
9208210783
1090470271
1147082721
122636b593
1315988008
14c030303
157e21016
hex564777f

90470271 has 8 divisors (see below), whose sum is σ = 120957184. Its totient is φ = 60148440.

The previous prime is 90470269. The next prime is 90470309. The reversal of 90470271 is 17207409.

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

It is not a de Polignac number, because 90470271 - 21 = 90470269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90470371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39985 + ... + 42186.

It is an arithmetic number, because the mean of its divisors is an integer number (15119648).

Almost surely, 290470271 is an apocalyptic number.

90470271 is a deficient number, since it is larger than the sum of its proper divisors (30486913).

90470271 is a wasteful number, since it uses less digits than its factorization.

90470271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82541.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 90470271 is about 9511.5861453282. The cubic root of 90470271 is about 448.9196652586.

The spelling of 90470271 in words is "ninety million, four hundred seventy thousand, two hundred seventy-one".

Divisors: 1 3 367 1101 82171 246513 30156757 90470271