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520334907 = 32931192931
BaseRepresentation
bin11111000000111…
…010111000111011
31100021002202022020
4133000322320323
52031201204112
6123344325523
715615526251
oct3700727073
91307082266
10520334907
11247796354
121263138a3
1383a54aa1
144d16a5d1
1530a3348c
hex1f03ae3b

520334907 has 16 divisors (see below), whose sum is σ = 740858880. Its totient is φ = 324122400.

The previous prime is 520334897. The next prime is 520334909. The reversal of 520334907 is 709433025.

It is a happy number.

It is not a de Polignac number, because 520334907 - 220 = 519286331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520334909) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 93769 + ... + 99162.

It is an arithmetic number, because the mean of its divisors is an integer number (46303680).

Almost surely, 2520334907 is an apocalyptic number.

520334907 is a deficient number, since it is larger than the sum of its proper divisors (220523973).

520334907 is a wasteful number, since it uses less digits than its factorization.

520334907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192994.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 520334907 is about 22810.8506417450. The cubic root of 520334907 is about 804.3177517458.

The spelling of 520334907 in words is "five hundred twenty million, three hundred thirty-four thousand, nine hundred seven".

Divisors: 1 3 29 31 87 93 899 2697 192931 578793 5594999 5980861 16784997 17942583 173444969 520334907