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531043130 = 25478313613
BaseRepresentation
bin11111101001110…
…001001100111010
31101000020210020002
4133221301030322
52041421340010
6124410033002
716105535462
oct3751611472
91330223202
10531043130
1125283a622
12129a18762
1386033b07
1450756ba2
153194b1a5
hex1fa7133a

531043130 has 32 divisors (see below), whose sum is σ = 988049664. Its totient is φ = 205377856.

The previous prime is 531043109. The next prime is 531043147. The reversal of 531043130 is 31340135.

It is a happy number.

It is a super-3 number, since 3×5310431303 (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32204 + ... + 45816.

It is an arithmetic number, because the mean of its divisors is an integer number (30876552).

Almost surely, 2531043130 is an apocalyptic number.

531043130 is a deficient number, since it is larger than the sum of its proper divisors (457006534).

531043130 is a wasteful number, since it uses less digits than its factorization.

531043130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13750.

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

The square root of 531043130 is about 23044.3730658918. The cubic root of 531043130 is about 809.7978106328.

Adding to 531043130 its reverse (31340135), we get a palindrome (562383265).

The spelling of 531043130 in words is "five hundred thirty-one million, forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 47 83 94 166 235 415 470 830 3901 7802 13613 19505 27226 39010 68065 136130 639811 1129879 1279622 2259758 3199055 5649395 6398110 11298790 53104313 106208626 265521565 531043130