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52878323 = 85361991
BaseRepresentation
bin1100100110110…
…1101111110011
310200111111102102
43021231233303
5102014101243
65125211015
71211313131
oct311555763
9120444372
1052878323
11279372a3
1215860a6b
13ac55564
147046751
1549979b8
hex326dbf3

52878323 has 4 divisors (see below), whose sum is σ = 52941168. Its totient is φ = 52815480.

The previous prime is 52878317. The next prime is 52878359. The reversal of 52878323 is 32387825.

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 52878323 - 24 = 52878307 is a prime.

It is a super-2 number, since 2×528783232 = 5592234086584658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52878523) 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, 30143 + ... + 31848.

It is an arithmetic number, because the mean of its divisors is an integer number (13235292).

Almost surely, 252878323 is an apocalyptic number.

52878323 is a deficient number, since it is larger than the sum of its proper divisors (62845).

52878323 is an equidigital number, since it uses as much as digits as its factorization.

52878323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62844.

The product of its digits is 80640, while the sum is 38.

The square root of 52878323 is about 7271.7482767214. The cubic root of 52878323 is about 375.3409000792.

The spelling of 52878323 in words is "fifty-two million, eight hundred seventy-eight thousand, three hundred twenty-three".

Divisors: 1 853 61991 52878323