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5212306561 = 711295939563
BaseRepresentation
bin1001101101010110…
…10111110010000001
3111110020212121102011
410312223113302001
541133322302221
62221113452521
7243110606020
oct46653276201
914406777364
105212306561
112235236080
121015711141
13650b34587
143763688b7
152078e21e1
hex136ad7c81

5212306561 has 32 divisors (see below), whose sum is σ = 6836659200. Its totient is φ = 3854921280.

The previous prime is 5212306531. The next prime is 5212306579. The reversal of 5212306561 is 1656032125.

It is not a de Polignac number, because 5212306561 - 27 = 5212306433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5212306501) 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 31 ways as a sum of consecutive naturals, for example, 111966 + ... + 151528.

It is an arithmetic number, because the mean of its divisors is an integer number (213645600).

Almost surely, 25212306561 is an apocalyptic number.

It is an amenable number.

5212306561 is a deficient number, since it is larger than the sum of its proper divisors (1624352639).

5212306561 is a wasteful number, since it uses less digits than its factorization.

5212306561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39669.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5212306561 is about 72196.3057295870. The cubic root of 5212306561 is about 1733.8438549911.

Adding to 5212306561 its reverse (1656032125), we get a palindrome (6868338686).

The spelling of 5212306561 in words is "five billion, two hundred twelve million, three hundred six thousand, five hundred sixty-one".

Divisors: 1 7 11 29 59 77 203 319 413 649 1711 2233 4543 11977 18821 39563 131747 276941 435193 1147327 2334217 3046351 8031289 12620597 16339519 25676387 67692293 88344179 179734709 473846051 744615223 5212306561