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52908881 = 197268573
BaseRepresentation
bin1100100111010…
…1001101010001
310200120001100012
43021311031101
5102021041011
65130004305
71211501204
oct311651521
9120501305
1052908881
1127958253
1215876695
13ac6643c
14705393b
1549a1a8b
hex3275351

52908881 has 4 divisors (see below), whose sum is σ = 53177652. Its totient is φ = 52640112.

The previous prime is 52908871. The next prime is 52908917. The reversal of 52908881 is 18880925.

52908881 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 can be written as a sum of positive squares in 2 ways, for example, as 34281025 + 18627856 = 5855^2 + 4316^2 .

It is a cyclic number.

It is not a de Polignac number, because 52908881 - 210 = 52907857 is a prime.

It is a super-2 number, since 2×529088812 = 5598699377344322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52908871) 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, 134090 + ... + 134483.

It is an arithmetic number, because the mean of its divisors is an integer number (13294413).

Almost surely, 252908881 is an apocalyptic number.

It is an amenable number.

52908881 is a deficient number, since it is larger than the sum of its proper divisors (268771).

52908881 is a wasteful number, since it uses less digits than its factorization.

52908881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268770.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 52908881 is about 7273.8491185891. The cubic root of 52908881 is about 375.4131884189.

The spelling of 52908881 in words is "fifty-two million, nine hundred eight thousand, eight hundred eighty-one".

Divisors: 1 197 268573 52908881