Search a number
-
+
531025012 = 22723235851
BaseRepresentation
bin11111101001101…
…100110001110100
31101000012212101001
4133221230301310
52041420300022
6124405413044
716105431610
oct3751546164
91330185331
10531025012
11252827a51
12129a0a184
13860287ab
1450750340
1531945b27
hex1fa6cc74

531025012 has 36 divisors (see below), whose sum is σ = 1110264736. Its totient is φ = 217681200.

The previous prime is 531024929. The next prime is 531025031. The reversal of 531025012 is 210520135.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 3114 + ... + 32737.

Almost surely, 2531025012 is an apocalyptic number.

It is an amenable number.

531025012 is an abundant number, since it is smaller than the sum of its proper divisors (579239724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531025012 is a wasteful number, since it uses less digits than its factorization.

531025012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35908 (or 35883 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 531025012 is about 23043.9799513886. The cubic root of 531025012 is about 809.7886010333.

Adding to 531025012 its reverse (210520135), we get a palindrome (741545147).

The spelling of 531025012 in words is "five hundred thirty-one million, twenty-five thousand, twelve".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 529 644 1058 2116 3703 7406 14812 35851 71702 143404 250957 501914 824573 1003828 1649146 3298292 5772011 11544022 18965179 23088044 37930358 75860716 132756253 265512506 531025012