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531478124 = 22132869531
BaseRepresentation
bin11111101011011…
…011011001101100
31101001001212220222
4133223123121230
52042024244444
6124423230512
716112326622
oct3753333154
91331055828
10531478124
11253007421
12129ba8438
1386156ac8
145082b512
15319d4eee
hex1fadb66c

531478124 has 6 divisors (see below), whose sum is σ = 930086724. Its totient is φ = 265739060.

The previous prime is 531478111. The next prime is 531478139. The reversal of 531478124 is 421874135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66434762 + ... + 66434769.

It is an arithmetic number, because the mean of its divisors is an integer number (155014454).

Almost surely, 2531478124 is an apocalyptic number.

It is an amenable number.

531478124 is a deficient number, since it is larger than the sum of its proper divisors (398608600).

531478124 is a wasteful number, since it uses less digits than its factorization.

531478124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132869535 (or 132869533 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 531478124 is about 23053.8093164666. The cubic root of 531478124 is about 810.0188605068.

It can be divided in two parts, 5314 and 78124, that added together give a palindrome (83438).

The spelling of 531478124 in words is "five hundred thirty-one million, four hundred seventy-eight thousand, one hundred twenty-four".

Divisors: 1 2 4 132869531 265739062 531478124