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530231123 = 1124347161
BaseRepresentation
bin11111100110101…
…010111101010011
31100221201112100202
4133212222331103
52041214343443
6124340405415
716065614222
oct3746527523
91327645322
10530231123
11252335544
121296a686b
1385b0b336
14505c4cb9
153183a7b8
hex1f9aaf53

530231123 has 4 divisors (see below), whose sum is σ = 530289528. Its totient is φ = 530172720.

The previous prime is 530231101. The next prime is 530231129. The reversal of 530231123 is 321132035.

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 530231123 - 218 = 529968979 is a prime.

It is a super-2 number, since 2×5302311232 = 562290087595682258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530231095 and 530231104.

It is not an unprimeable number, because it can be changed into a prime (530231129) 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, 12338 + ... + 34823.

It is an arithmetic number, because the mean of its divisors is an integer number (132572382).

Almost surely, 2530231123 is an apocalyptic number.

530231123 is a deficient number, since it is larger than the sum of its proper divisors (58405).

530231123 is a wasteful number, since it uses less digits than its factorization.

530231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58404.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 530231123 is about 23026.7479901092. The cubic root of 530231123 is about 809.3848517517.

Adding to 530231123 its reverse (321132035), we get a palindrome (851363158).

It can be divided in two parts, 5302311 and 23, that multiplied together give a triangular number (121953153 = T15617).

The spelling of 530231123 in words is "five hundred thirty million, two hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 11243 47161 530231123