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52379321 = 97539993
BaseRepresentation
bin1100011111001…
…1111010111001
310122120010220212
43013303322321
5101402114241
65110400505
71204134251
oct307637271
9118503825
1052379321
11276263a5
1215660135
13ab0c3a7
146d56961
1548e9beb
hex31f3eb9

52379321 has 4 divisors (see below), whose sum is σ = 52919412. Its totient is φ = 51839232.

The previous prime is 52379293. The next prime is 52379323. The reversal of 52379321 is 12397325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40819321 + 11560000 = 6389^2 + 3400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52379321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52379323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269900 + ... + 270093.

It is an arithmetic number, because the mean of its divisors is an integer number (13229853).

Almost surely, 252379321 is an apocalyptic number.

It is an amenable number.

52379321 is a deficient number, since it is larger than the sum of its proper divisors (540091).

52379321 is an equidigital number, since it uses as much as digits as its factorization.

52379321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540090.

The product of its digits is 11340, while the sum is 32.

The square root of 52379321 is about 7237.3559398443. The cubic root of 52379321 is about 374.1564946042.

The spelling of 52379321 in words is "fifty-two million, three hundred seventy-nine thousand, three hundred twenty-one".

Divisors: 1 97 539993 52379321