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52380442 = 236771363
BaseRepresentation
bin1100011111010…
…0001100011010
310122120012110101
43013310030122
5101402133232
65110410014
71204140442
oct307641432
9118505411
1052380442
1127627224
121566090a
13ab0ca5a
146d57122
1548ea1e7
hex31f431a

52380442 has 8 divisors (see below), whose sum is σ = 78785856. Its totient is φ = 26118492.

The previous prime is 52380439. The next prime is 52380457. The reversal of 52380442 is 24408325.

52380442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52380442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34948 + ... + 36415.

It is an arithmetic number, because the mean of its divisors is an integer number (9848232).

Almost surely, 252380442 is an apocalyptic number.

52380442 is a deficient number, since it is larger than the sum of its proper divisors (26405414).

52380442 is a wasteful number, since it uses less digits than its factorization.

52380442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71732.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 52380442 is about 7237.4333848402. The cubic root of 52380442 is about 374.1591637646.

Adding to 52380442 its reverse (24408325), we get a palindrome (76788767).

The spelling of 52380442 in words is "fifty-two million, three hundred eighty thousand, four hundred forty-two".

Divisors: 1 2 367 734 71363 142726 26190221 52380442