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530861689 = 2328798017
BaseRepresentation
bin11111101001000…
…100111001111001
31100222220120100001
4133221010321321
52041400033224
6124402113001
716104151501
oct3751047171
91328816301
10530861689
11252726276
1212994b761
1385c9c357
145070aa01
1531912544
hex1fa44e79

530861689 has 8 divisors (see below), whose sum is σ = 554204160. Its totient is φ = 507541056.

The previous prime is 530861677. The next prime is 530861707. The reversal of 530861689 is 986168035.

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

It is a cyclic number.

It is not a de Polignac number, because 530861689 - 25 = 530861657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530871689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62209 + ... + 70225.

It is an arithmetic number, because the mean of its divisors is an integer number (69275520).

Almost surely, 2530861689 is an apocalyptic number.

It is an amenable number.

530861689 is a deficient number, since it is larger than the sum of its proper divisors (23342471).

530861689 is a wasteful number, since it uses less digits than its factorization.

530861689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 530861689 is about 23040.4359550769. The cubic root of 530861689 is about 809.7055725117.

The spelling of 530861689 in words is "five hundred thirty million, eight hundred sixty-one thousand, six hundred eighty-nine".

Divisors: 1 23 2879 8017 66217 184391 23080943 530861689