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52771488 = 253711359
BaseRepresentation
bin1100100101001…
…1101010100000
310200022001212120
43021103222200
5102002141423
65123024240
71210356510
oct311235240
9120261776
1052771488
1127874000
121580b080
13ac18a43
147019840
154975ee3
hex3253aa0

52771488 has 192 divisors, whose sum is σ = 177085440. Its totient is φ = 13474560.

The previous prime is 52771463. The next prime is 52771501. The reversal of 52771488 is 88417725.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (125440) is a multiple of the sum of its prime factors (112).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 894403 + ... + 894461.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 252771488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52771488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88542720).

52771488 is an abundant number, since it is smaller than the sum of its proper divisors (124313952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52771488 is a wasteful number, since it uses less digits than its factorization.

52771488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 82 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 52771488 is about 7264.3986674741. The cubic root of 52771488 is about 375.0879509263.

The spelling of 52771488 in words is "fifty-two million, seven hundred seventy-one thousand, four hundred eighty-eight".