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52285772 = 22711533203
BaseRepresentation
bin1100011101110…
…1000101001100
310122101101121002
43013131011030
5101341121042
65104355432
71203264440
oct307350514
9118341532
1052285772
1127572090
1215615b78
13aaa8936
146d30820
1548cc132
hex31dd14c

52285772 has 48 divisors (see below), whose sum is σ = 116266752. Its totient is φ = 19980480.

The previous prime is 52285771. The next prime is 52285789. The reversal of 52285772 is 27758225.

52285772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52285771) 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 15 ways as a sum of consecutive naturals, for example, 14723 + ... + 17925.

It is an arithmetic number, because the mean of its divisors is an integer number (2422224).

Almost surely, 252285772 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 52285772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58133376).

52285772 is an abundant number, since it is smaller than the sum of its proper divisors (63980980).

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

52285772 is a wasteful number, since it uses less digits than its factorization.

52285772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278 (or 3276 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 52285772 is about 7230.8901250123. The cubic root of 52285772 is about 373.9336151441.

The spelling of 52285772 in words is "fifty-two million, two hundred eighty-five thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 53 77 106 154 212 308 371 583 742 1166 1484 2332 3203 4081 6406 8162 12812 16324 22421 35233 44842 70466 89684 140932 169759 246631 339518 493262 679036 986524 1188313 1867349 2376626 3734698 4753252 7469396 13071443 26142886 52285772