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520057696 = 2529619187
BaseRepresentation
bin11110111111110…
…111001101100000
31100020120200001011
4132333313031200
52031113321241
6123334350304
715613263124
oct3677671540
91306520034
10520057696
11247617054
121261bb394
1383988862
144d0d7584
15309cb281
hex1eff7360

520057696 has 48 divisors (see below), whose sum is σ = 1076649840. Its totient is φ = 246919680.

The previous prime is 520057691. The next prime is 520057697. The reversal of 520057696 is 696750025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520057691) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 52015 + ... + 61201.

It is an arithmetic number, because the mean of its divisors is an integer number (22430205).

Almost surely, 2520057696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520057696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538324920).

520057696 is an abundant number, since it is smaller than the sum of its proper divisors (556592144).

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

520057696 is a wasteful number, since it uses less digits than its factorization.

520057696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287 (or 9279 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 520057696 is about 22804.7735353807. The cubic root of 520057696 is about 804.1748916171.

The spelling of 520057696 in words is "five hundred twenty million, fifty-seven thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 29 32 58 61 116 122 232 244 464 488 928 976 1769 1952 3538 7076 9187 14152 18374 28304 36748 56608 73496 146992 266423 293984 532846 560407 1065692 1120814 2131384 2241628 4262768 4483256 8525536 8966512 16251803 17933024 32503606 65007212 130014424 260028848 520057696