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52424687 = 77489241
BaseRepresentation
bin1100011111111…
…0111111101111
310122122110011002
43013332333233
5101410042222
65111350515
71204413440
oct307767757
9118573132
1052424687
1127657497
121568243b
13ab26c33
146d692c7
154908392
hex31fefef

52424687 has 4 divisors (see below), whose sum is σ = 59913936. Its totient is φ = 44935440.

The previous prime is 52424677. The next prime is 52424699. The reversal of 52424687 is 78642425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52424687 - 26 = 52424623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52424687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52424677) 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, 3744614 + ... + 3744627.

It is an arithmetic number, because the mean of its divisors is an integer number (14978484).

Almost surely, 252424687 is an apocalyptic number.

52424687 is a deficient number, since it is larger than the sum of its proper divisors (7489249).

52424687 is an equidigital number, since it uses as much as digits as its factorization.

52424687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489248.

The product of its digits is 107520, while the sum is 38.

The square root of 52424687 is about 7240.4894171596. The cubic root of 52424687 is about 374.2644830568.

The spelling of 52424687 in words is "fifty-two million, four hundred twenty-four thousand, six hundred eighty-seven".

Divisors: 1 7 7489241 52424687