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5220523131 = 329349171937
BaseRepresentation
bin1001101110010101…
…01101110001111011
3111110211100001102120
410313022231301323
541142423220011
62222005532323
7243240500025
oct46712556173
914424301376
105220523131
11223993832a
1210184140a3
13652750455
143774a7015
152084b6a06
hex1372adc7b

5220523131 has 16 divisors (see below), whose sum is σ = 7221396000. Its totient is φ = 3350688768.

The previous prime is 5220523129. The next prime is 5220523157. The reversal of 5220523131 is 1313250225.

It is a happy number.

It is not a de Polignac number, because 5220523131 - 21 = 5220523129 is a prime.

It is a super-2 number, since 2×52205231312 = 54507723522612086322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5220523111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55606 + ... + 116331.

It is an arithmetic number, because the mean of its divisors is an integer number (451337250).

Almost surely, 25220523131 is an apocalyptic number.

5220523131 is a deficient number, since it is larger than the sum of its proper divisors (2000872869).

5220523131 is a wasteful number, since it uses less digits than its factorization.

5220523131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172318.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 5220523131 is about 72253.1876874647. The cubic root of 5220523131 is about 1734.7544416291.

Adding to 5220523131 its reverse (1313250225), we get a palindrome (6533773356).

The spelling of 5220523131 in words is "five billion, two hundred twenty million, five hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 29 87 349 1047 10121 30363 171937 515811 4986173 14958519 60006013 180018039 1740174377 5220523131