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52313219 = 77473317
BaseRepresentation
bin1100011110001…
…1110010000011
310122102210020122
43013203302003
5101343010334
65105130455
71203440450
oct307436203
9118383218
1052313219
1127590772
1215629a2b
13aab828a
146d3a827
1548d532e
hex31e3c83

52313219 has 4 divisors (see below), whose sum is σ = 59786544. Its totient is φ = 44839896.

The previous prime is 52313197. The next prime is 52313231. The reversal of 52313219 is 91231325.

52313219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52313219 is a prime.

It is a super-2 number, since 2×523132192 = 5473345764283922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52313249) by changing a digit.

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, 3736652 + ... + 3736665.

It is an arithmetic number, because the mean of its divisors is an integer number (14946636).

Almost surely, 252313219 is an apocalyptic number.

52313219 is a deficient number, since it is larger than the sum of its proper divisors (7473325).

52313219 is an equidigital number, since it uses as much as digits as its factorization.

52313219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7473324.

The product of its digits is 1620, while the sum is 26.

The square root of 52313219 is about 7232.7877751252. The cubic root of 52313219 is about 373.9990348570. Note that the first 3 decimals are identical.

The spelling of 52313219 in words is "fifty-two million, three hundred thirteen thousand, two hundred nineteen".

Divisors: 1 7 7473317 52313219