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531102043 = 1997326591
BaseRepresentation
bin11111101001111…
…111100101011011
31101000100210001001
4133221333211123
52041430231133
6124411205431
716106202313
oct3751774533
91330323031
10531102043
1125287a90a
12129a46877
1386054884
1450770443
153195d87d
hex1fa7f95b

531102043 has 4 divisors (see below), whose sum is σ = 531148608. Its totient is φ = 531055480.

The previous prime is 531102037. The next prime is 531102053. The reversal of 531102043 is 340201135.

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 531102043 - 221 = 529004891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531102043.

It is not an unprimeable number, because it can be changed into a prime (531102053) 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, 6678 + ... + 33268.

It is an arithmetic number, because the mean of its divisors is an integer number (132787152).

Almost surely, 2531102043 is an apocalyptic number.

531102043 is a deficient number, since it is larger than the sum of its proper divisors (46565).

531102043 is a wasteful number, since it uses less digits than its factorization.

531102043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46564.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 531102043 is about 23045.6512817494. The cubic root of 531102043 is about 809.8277553784.

Adding to 531102043 its reverse (340201135), we get a palindrome (871303178).

The spelling of 531102043 in words is "five hundred thirty-one million, one hundred two thousand, forty-three".

Divisors: 1 19973 26591 531102043