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52908081 = 341430147
BaseRepresentation
bin1100100111010…
…1000000110001
310200120000020120
43021311000301
5102021024311
65130000453
71211465652
oct311650061
9120500216
1052908081
1127957696
1215876129
13ac65c75
147053529
1549a1706
hex3275031

52908081 has 8 divisors (see below), whose sum is σ = 72264864. Its totient is φ = 34411680.

The previous prime is 52908077. The next prime is 52908083. The reversal of 52908081 is 18080925.

It is a happy number.

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

It is not a de Polignac number, because 52908081 - 22 = 52908077 is a prime.

It is a super-2 number, since 2×529080812 = 5598530070205122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52908083) 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, 214951 + ... + 215196.

It is an arithmetic number, because the mean of its divisors is an integer number (9033108).

Almost surely, 252908081 is an apocalyptic number.

It is an amenable number.

52908081 is a deficient number, since it is larger than the sum of its proper divisors (19356783).

52908081 is a wasteful number, since it uses less digits than its factorization.

52908081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430191.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 52908081 is about 7273.7941268639. The cubic root of 52908081 is about 375.4112962849.

The spelling of 52908081 in words is "fifty-two million, nine hundred eight thousand, eighty-one".

Divisors: 1 3 41 123 430147 1290441 17636027 52908081