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531487072 = 25139119489
BaseRepresentation
bin11111101011011…
…101100101100000
31101001002100012101
4133223131211200
52042030041242
6124423340144
716112364664
oct3753354540
91331070171
10531487072
11253013116
12129bb1654
138615abbc
14508308a4
15319d79b7
hex1fadd960

531487072 has 24 divisors (see below), whose sum is σ = 1053901800. Its totient is φ = 263829504.

The previous prime is 531487069. The next prime is 531487079. The reversal of 531487072 is 270784135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531487079) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55297 + ... + 64192.

It is an arithmetic number, because the mean of its divisors is an integer number (43912575).

Almost surely, 2531487072 is an apocalyptic number.

It is an amenable number.

531487072 is a deficient number, since it is larger than the sum of its proper divisors (522414728).

531487072 is a wasteful number, since it uses less digits than its factorization.

531487072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119638 (or 119630 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 531487072 is about 23054.0033833606. The cubic root of 531487072 is about 810.0234063246.

The spelling of 531487072 in words is "five hundred thirty-one million, four hundred eighty-seven thousand, seventy-two".

Divisors: 1 2 4 8 16 32 139 278 556 1112 2224 4448 119489 238978 477956 955912 1911824 3823648 16608971 33217942 66435884 132871768 265743536 531487072