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531065048 = 23196752147
BaseRepresentation
bin11111101001110…
…110100011011000
31101000021220021212
4133221312203120
52041423040143
6124410322252
716105656413
oct3751664330
91330256255
10531065048
11252855038
12129a29388
1386040a97
1450760b7a
1531952918
hex1fa768d8

531065048 has 32 divisors (see below), whose sum is σ = 1063819200. Its totient is φ = 247797792.

The previous prime is 531065027. The next prime is 531065063. The reversal of 531065048 is 840560135.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 15890 + ... + 36257.

It is an arithmetic number, because the mean of its divisors is an integer number (33244350).

Almost surely, 2531065048 is an apocalyptic number.

It is an amenable number.

531065048 is an abundant number, since it is smaller than the sum of its proper divisors (532754152).

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

531065048 is a wasteful number, since it uses less digits than its factorization.

531065048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52239 (or 52235 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 531065048 is about 23044.8486217636. The cubic root of 531065048 is about 809.8089515385.

The spelling of 531065048 in words is "five hundred thirty-one million, sixty-five thousand, forty-eight".

Divisors: 1 2 4 8 19 38 67 76 134 152 268 536 1273 2546 5092 10184 52147 104294 208588 417176 990793 1981586 3493849 3963172 6987698 7926344 13975396 27950792 66383131 132766262 265532524 531065048