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1030530239 = 1245782727
BaseRepresentation
bin111101011011001…
…010010010111111
32122211010100201122
4331123022102333
54102303431424
6250131501155
734352235224
oct7533122277
92584110648
101030530239
11489786692
122491577bb
1313566960b
149ac1794b
156071245e
hex3d6ca4bf

1030530239 has 4 divisors (see below), whose sum is σ = 1030625424. Its totient is φ = 1030435056.

The previous prime is 1030530229. The next prime is 1030530271. The reversal of 1030530239 is 9320350301.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1030530239 - 212 = 1030526143 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 (1030530209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28907 + ... + 53820.

It is an arithmetic number, because the mean of its divisors is an integer number (257656356).

Almost surely, 21030530239 is an apocalyptic number.

1030530239 is a deficient number, since it is larger than the sum of its proper divisors (95185).

1030530239 is an equidigital number, since it uses as much as digits as its factorization.

1030530239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95184.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 1030530239 is about 32101.8728269863. The cubic root of 1030530239 is about 1010.0749018072.

The spelling of 1030530239 in words is "one billion, thirty million, five hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 12457 82727 1030530239