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530878540 = 22526543927
BaseRepresentation
bin11111101001001…
…001000001001100
31100222221102110011
4133221021001030
52041401103130
6124402323004
716104251563
oct3751110114
91328842404
10530878540
112527379a5
12129959464
1385ca6c1a
1450712bda
153191752a
hex1fa4904c

530878540 has 12 divisors (see below), whose sum is σ = 1114844976. Its totient is φ = 212351408.

The previous prime is 530878531. The next prime is 530878561. The reversal of 530878540 is 45878035.

It is a junction number, because it is equal to n+sod(n) for n = 530878493 and 530878502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13271944 + ... + 13271983.

It is an arithmetic number, because the mean of its divisors is an integer number (92903748).

Almost surely, 2530878540 is an apocalyptic number.

It is an amenable number.

530878540 is an abundant number, since it is smaller than the sum of its proper divisors (583966436).

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

530878540 is a wasteful number, since it uses less digits than its factorization.

530878540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26543936 (or 26543934 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 530878540 is about 23040.8016353598. The cubic root of 530878540 is about 809.7141398432.

The spelling of 530878540 in words is "five hundred thirty million, eight hundred seventy-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 26543927 53087854 106175708 132719635 265439270 530878540