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52479881 = 195774787
BaseRepresentation
bin1100100000110…
…0011110001001
310122202020212022
43020030132021
5101413324011
65112454225
71205033366
oct310143611
9118666768
1052479881
1127694a03
12156aa375
13ab460ac
146d8146d
1549198db
hex320c789

52479881 has 8 divisors (see below), whose sum is σ = 55349280. Its totient is φ = 49621248.

The previous prime is 52479857. The next prime is 52479883. The reversal of 52479881 is 18897425.

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

It is a cyclic number.

It is not a de Polignac number, because 52479881 - 214 = 52463497 is a prime.

It is a super-2 number, since 2×524798812 = 5508275819548322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52479883) by changing a digit.

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, 8570 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (6918660).

Almost surely, 252479881 is an apocalyptic number.

It is an amenable number.

52479881 is a deficient number, since it is larger than the sum of its proper divisors (2869399).

52479881 is a wasteful number, since it uses less digits than its factorization.

52479881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383.

The product of its digits is 161280, while the sum is 44.

The square root of 52479881 is about 7244.2998971605. The cubic root of 52479881 is about 374.3957819406.

The spelling of 52479881 in words is "fifty-two million, four hundred seventy-nine thousand, eight hundred eighty-one".

Divisors: 1 19 577 4787 10963 90953 2762099 52479881