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90478301 = 175322253
BaseRepresentation
bin1010110010010…
…01011011011101
320022020202220012
411121021123131
5141130301201
612551133005
72146024064
oct531113335
9208222805
1090478301
1147088761
1226374165
131598b874
14c0331db
157e235bb
hex56496dd

90478301 has 4 divisors (see below), whose sum is σ = 95800572. Its totient is φ = 85156032.

The previous prime is 90478273. The next prime is 90478303. The reversal of 90478301 is 10387409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10387409 = 18157389.

It can be written as a sum of positive squares in 2 ways, for example, as 85119076 + 5359225 = 9226^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 90478301 - 218 = 90216157 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 (90478303) 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, 2661110 + ... + 2661143.

It is an arithmetic number, because the mean of its divisors is an integer number (23950143).

Almost surely, 290478301 is an apocalyptic number.

It is an amenable number.

90478301 is a deficient number, since it is larger than the sum of its proper divisors (5322271).

90478301 is a wasteful number, since it uses less digits than its factorization.

90478301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322270.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 90478301 is about 9512.0082527298. The cubic root of 90478301 is about 448.9329466686.

The spelling of 90478301 in words is "ninety million, four hundred seventy-eight thousand, three hundred one".

Divisors: 1 17 5322253 90478301