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52823945 = 518158369
BaseRepresentation
bin1100100110000…
…0011110001001
310200101201211102
43021200132021
5102010331240
65124111145
71210665446
oct311403611
9120351742
1052823945
11278aa459
12158354b5
13ac36895
1470309cd
154986815
hex3260789

52823945 has 8 divisors (see below), whose sum is σ = 63740040. Its totient is φ = 42024960.

The previous prime is 52823923. The next prime is 52823951. The reversal of 52823945 is 54932825.

It can be written as a sum of positive squares in 4 ways, for example, as 121 + 52823824 = 11^2 + 7268^2 .

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

It is not a de Polignac number, because 52823945 - 218 = 52561801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52823899 and 52823908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28280 + ... + 30089.

It is an arithmetic number, because the mean of its divisors is an integer number (7967505).

Almost surely, 252823945 is an apocalyptic number.

It is an amenable number.

52823945 is a deficient number, since it is larger than the sum of its proper divisors (10916095).

52823945 is a wasteful number, since it uses less digits than its factorization.

52823945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58555.

The product of its digits is 86400, while the sum is 38.

The square root of 52823945 is about 7268.0083241559. The cubic root of 52823945 is about 375.2121939813.

The spelling of 52823945 in words is "fifty-two million, eight hundred twenty-three thousand, nine hundred forty-five".

Divisors: 1 5 181 905 58369 291845 10564789 52823945