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520641197 = 758368659
BaseRepresentation
bin11111000010000…
…101101010101101
31100021200022110022
4133002011222231
52031241004242
6123355051525
715621243236
oct3702055255
91307608408
10520641197
1124798548a
12126440ba5
1383b3131b
144d20a08d
1530a940d2
hex1f085aad

520641197 has 4 divisors (see below), whose sum is σ = 520717440. Its totient is φ = 520564956.

The previous prime is 520641169. The next prime is 520641203. The reversal of 520641197 is 791146025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520641197 - 226 = 453532333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520641127) 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, 26747 + ... + 41912.

It is an arithmetic number, because the mean of its divisors is an integer number (130179360).

Almost surely, 2520641197 is an apocalyptic number.

It is an amenable number.

520641197 is a deficient number, since it is larger than the sum of its proper divisors (76243).

520641197 is an equidigital number, since it uses as much as digits as its factorization.

520641197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76242.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 520641197 is about 22817.5633449323. The cubic root of 520641197 is about 804.4755386881.

The spelling of 520641197 in words is "five hundred twenty million, six hundred forty-one thousand, one hundred ninety-seven".

Divisors: 1 7583 68659 520641197