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5251212799 = 719892711637
BaseRepresentation
bin1001110001111111…
…10010010111111111
3111112222002020201221
410320333302113333
541223302302144
62225023414211
7244062400210
oct47077622777
914488066657
105251212799
112255199998
121026754367
13658c07311
1437b5b5407
1520b029d84
hex138ff25ff

5251212799 has 32 divisors (see below), whose sum is σ = 6415718400. Its totient is φ = 4198106880.

The previous prime is 5251212781. The next prime is 5251212803. The reversal of 5251212799 is 9972121525.

It is a cyclic number.

It is not a de Polignac number, because 5251212799 - 225 = 5217658367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251212299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3207009 + ... + 3208645.

It is an arithmetic number, because the mean of its divisors is an integer number (200491200).

Almost surely, 25251212799 is an apocalyptic number.

5251212799 is a deficient number, since it is larger than the sum of its proper divisors (1164505601).

5251212799 is a wasteful number, since it uses less digits than its factorization.

5251212799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its digits is 113400, while the sum is 43.

The square root of 5251212799 is about 72465.2523558705. The cubic root of 5251212799 is about 1738.1471445720.

The spelling of 5251212799 in words is "five billion, two hundred fifty-one million, two hundred twelve thousand, seven hundred ninety-nine".

Divisors: 1 7 19 89 133 271 623 1637 1691 1897 5149 11459 11837 24119 31103 36043 145693 168833 217721 443627 458261 1019851 2768167 3105389 3207827 8428913 19377169 39482803 59002391 276379621 750173257 5251212799