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52978363 = 73725731
BaseRepresentation
bin1100101000011…
…0001010111011
310200200120122121
43022012022323
5102030301423
65131302111
71212210604
oct312061273
9120616577
1052978363
11279a5479
12158aa937
13ac8bc59
147070dab
1549b745d
hex32862bb

52978363 has 4 divisors (see below), whose sum is σ = 53704168. Its totient is φ = 52252560.

The previous prime is 52978357. The next prime is 52978369. The reversal of 52978363 is 36387925.

52978363 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 an interprime number because it is at equal distance from previous prime (52978357) and next prime (52978369).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52978363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52978369) 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, 362793 + ... + 362938.

It is an arithmetic number, because the mean of its divisors is an integer number (13426042).

Almost surely, 252978363 is an apocalyptic number.

52978363 is a deficient number, since it is larger than the sum of its proper divisors (725805).

52978363 is an equidigital number, since it uses as much as digits as its factorization.

52978363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725804.

The product of its digits is 272160, while the sum is 43.

The square root of 52978363 is about 7278.6237023218. The cubic root of 52978363 is about 375.5774522665.

The spelling of 52978363 in words is "fifty-two million, nine hundred seventy-eight thousand, three hundred sixty-three".

Divisors: 1 73 725731 52978363