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531245148 = 22376324347
BaseRepresentation
bin11111101010100…
…010100001011100
31101000122001100020
4133222202201130
52041444321043
6124414232140
716110336450
oct3752424134
91330561306
10531245148
11252968385
12129ab5650
13860a4a55
14507aa660
153198ae83
hex1faa285c

531245148 has 24 divisors (see below), whose sum is σ = 1416653952. Its totient is φ = 151784304.

The previous prime is 531245147. The next prime is 531245161. The reversal of 531245148 is 841542135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531245147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162090 + ... + 3162257.

It is an arithmetic number, because the mean of its divisors is an integer number (59027248).

Almost surely, 2531245148 is an apocalyptic number.

It is an amenable number.

531245148 is an abundant number, since it is smaller than the sum of its proper divisors (885408804).

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

531245148 is a wasteful number, since it uses less digits than its factorization.

531245148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324361 (or 6324359 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 531245148 is about 23048.7558883338. The cubic root of 531245148 is about 809.9004846497.

The spelling of 531245148 in words is "five hundred thirty-one million, two hundred forty-five thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 6324347 12648694 18973041 25297388 37946082 44270429 75892164 88540858 132811287 177081716 265622574 531245148