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530819840 = 285414703
BaseRepresentation
bin11111101000111…
…010101100000000
31100222211102221002
4133220322230000
52041342213330
6124401151132
716103615465
oct3750725400
91328742832
10530819840
112526a7891
1212992b4a8
1385c862a5
14506d966c
1531904e45
hex1fa3ab00

530819840 has 36 divisors (see below), whose sum is σ = 1271482464. Its totient is φ = 212327424.

The previous prime is 530819827. The next prime is 530819843. The reversal of 530819840 is 48918035.

It is a junction number, because it is equal to n+sod(n) for n = 530819794 and 530819803.

It is not an unprimeable number, because it can be changed into a prime (530819843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206072 + ... + 208631.

Almost surely, 2530819840 is an apocalyptic number.

It is an amenable number.

530819840 is an abundant number, since it is smaller than the sum of its proper divisors (740662624).

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

530819840 is an equidigital number, since it uses as much as digits as its factorization.

530819840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414724 (or 414710 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 530819840 is about 23039.5277729384. The cubic root of 530819840 is about 809.6842949927.

The spelling of 530819840 in words is "five hundred thirty million, eight hundred nineteen thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 414703 829406 1658812 2073515 3317624 4147030 6635248 8294060 13270496 16588120 26540992 33176240 53081984 66352480 106163968 132704960 265409920 530819840