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530778867 = 31391272851
BaseRepresentation
bin11111101000110…
…000101011110011
31100222202100201120
4133220300223303
52041334410432
6124400233323
716103355153
oct3750605363
91328670646
10530778867
1125267a023
1212990b843
1385c70748
14506c8763
15318e7c2c
hex1fa30af3

530778867 has 8 divisors (see below), whose sum is σ = 712797120. Its totient is φ = 351306600.

The previous prime is 530778863. The next prime is 530778881. The reversal of 530778867 is 768877035.

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

It is not a de Polignac number, because 530778867 - 22 = 530778863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530778863) 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, 636009 + ... + 636842.

It is an arithmetic number, because the mean of its divisors is an integer number (89099640).

Almost surely, 2530778867 is an apocalyptic number.

530778867 is a deficient number, since it is larger than the sum of its proper divisors (182018253).

530778867 is a wasteful number, since it uses less digits than its factorization.

530778867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272993.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The square root of 530778867 is about 23038.6385665473. The cubic root of 530778867 is about 809.6634617798.

The spelling of 530778867 in words is "five hundred thirty million, seven hundred seventy-eight thousand, eight hundred sixty-seven".

Divisors: 1 3 139 417 1272851 3818553 176926289 530778867