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52758784 = 281383191
BaseRepresentation
bin1100100101000…
…0100100000000
310200021102110001
43021100210000
5102001240114
65122445344
71210304461
oct311204400
9120242401
1052758784
1127865501
1215803854
13ac13020
147014d68
154972374
hex3250900

52758784 has 72 divisors (see below), whose sum is σ = 115379712. Its totient is φ = 23930880.

The previous prime is 52758773. The next prime is 52758821. The reversal of 52758784 is 48785725.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276129 + ... + 276319.

It is an arithmetic number, because the mean of its divisors is an integer number (1602496).

Almost surely, 252758784 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 52758784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57689856).

52758784 is an abundant number, since it is smaller than the sum of its proper divisors (62620928).

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

52758784 is a wasteful number, since it uses less digits than its factorization.

52758784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 289 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The square root of 52758784 is about 7263.5242134931. The cubic root of 52758784 is about 375.0578494458.

The spelling of 52758784 in words is "fifty-two million, seven hundred fifty-eight thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 83 104 128 166 191 208 256 332 382 416 664 764 832 1079 1328 1528 1664 2158 2483 2656 3056 3328 4316 4966 5312 6112 8632 9932 10624 12224 15853 17264 19864 21248 24448 31706 34528 39728 48896 63412 69056 79456 126824 138112 158912 206089 253648 276224 317824 412178 507296 635648 824356 1014592 1648712 2029184 3297424 4058368 6594848 13189696 26379392 52758784