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530078146 = 21320387621
BaseRepresentation
bin11111100110000…
…101100111000010
31100221102202111221
4133212011213002
52041200000041
6124333225254
716064406223
oct3746054702
91327382457
10530078146
11252240614
1212963222a
1385a86810
145058524a
153180a2d1
hex1f9859c2

530078146 has 8 divisors (see below), whose sum is σ = 856280124. Its totient is φ = 244651440.

The previous prime is 530078123. The next prime is 530078147. The reversal of 530078146 is 641870035.

It can be written as a sum of positive squares in 2 ways, for example, as 385140625 + 144937521 = 19625^2 + 12039^2 .

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

It is not an unprimeable number, because it can be changed into a prime (530078147) 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, 10193785 + ... + 10193836.

Almost surely, 2530078146 is an apocalyptic number.

530078146 is a deficient number, since it is larger than the sum of its proper divisors (326201978).

530078146 is a wasteful number, since it uses less digits than its factorization.

530078146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20387636.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 530078146 is about 23023.4260265496. The cubic root of 530078146 is about 809.3070057141.

The spelling of 530078146 in words is "five hundred thirty million, seventy-eight thousand, one hundred forty-six".

Divisors: 1 2 13 26 20387621 40775242 265039073 530078146