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530055839 = 2381222619
BaseRepresentation
bin11111100110000…
…000001010011111
31100221101121220202
4133212000022133
52041143241324
6124332534115
716064254205
oct3746001237
91327347822
10530055839
11252225885
1212962133b
1385a79611
145057b075
15318038ae
hex1f98029f

530055839 has 4 divisors (see below), whose sum is σ = 530280840. Its totient is φ = 529830840.

The previous prime is 530055833. The next prime is 530055859. The reversal of 530055839 is 938550035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530055839 - 216 = 529990303 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 (530055833) 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, 108929 + ... + 113690.

It is an arithmetic number, because the mean of its divisors is an integer number (132570210).

Almost surely, 2530055839 is an apocalyptic number.

530055839 is a deficient number, since it is larger than the sum of its proper divisors (225001).

530055839 is a wasteful number, since it uses less digits than its factorization.

530055839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225000.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 530055839 is about 23022.9415800849. The cubic root of 530055839 is about 809.2956530077.

The spelling of 530055839 in words is "five hundred thirty million, fifty-five thousand, eight hundred thirty-nine".

Divisors: 1 2381 222619 530055839