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530481378 = 23712630509
BaseRepresentation
bin11111100111101…
…000000011100010
31100222012020122110
4133213220003202
52041300401003
6124350020150
716101005640
oct3747500342
91328166573
10530481378
11252496569
121297a7656
1385b9820b
145064c190
1531889a03
hex1f9e80e2

530481378 has 16 divisors (see below), whose sum is σ = 1212528960. Its totient is φ = 151566096.

The previous prime is 530481359. The next prime is 530481389. The reversal of 530481378 is 873184035.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6315213 + ... + 6315296.

It is an arithmetic number, because the mean of its divisors is an integer number (75783060).

Almost surely, 2530481378 is an apocalyptic number.

530481378 is an abundant number, since it is smaller than the sum of its proper divisors (682047582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530481378 is a wasteful number, since it uses less digits than its factorization.

530481378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12630521.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 530481378 is about 23032.1813556597. The cubic root of 530481378 is about 809.5121677712.

The spelling of 530481378 in words is "five hundred thirty million, four hundred eighty-one thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 7 14 21 42 12630509 25261018 37891527 75783054 88413563 176827126 265240689 530481378