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126853728 = 25317194091
BaseRepresentation
bin1111000111110…
…10001001100000
322211200211121020
413203322021200
5224433304403
620330525440
73100144641
oct743721140
9284624536
10126853728
11656730a1
1236596880
13203866a1
1412bc16c8
15b20b453
hex78fa260

126853728 has 96 divisors (see below), whose sum is σ = 371226240. Its totient is φ = 37693440.

The previous prime is 126853721. The next prime is 126853733. The reversal of 126853728 is 827358621.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 126853728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126853721) 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, 28963 + ... + 33053.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2126853728 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 126853728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185613120).

126853728 is an abundant number, since it is smaller than the sum of its proper divisors (244372512).

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

126853728 is a wasteful number, since it uses less digits than its factorization.

126853728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140 (or 4132 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 126853728 is about 11262.9360292954. The cubic root of 126853728 is about 502.4595190280.

The spelling of 126853728 in words is "one hundred twenty-six million, eight hundred fifty-three thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 19 24 32 34 38 48 51 57 68 76 96 102 114 136 152 204 228 272 304 323 408 456 544 608 646 816 912 969 1292 1632 1824 1938 2584 3876 4091 5168 7752 8182 10336 12273 15504 16364 24546 31008 32728 49092 65456 69547 77729 98184 130912 139094 155458 196368 208641 233187 278188 310916 392736 417282 466374 556376 621832 834564 932748 1112752 1243664 1321393 1669128 1865496 2225504 2487328 2642786 3338256 3730992 3964179 5285572 6676512 7461984 7928358 10571144 15856716 21142288 31713432 42284576 63426864 126853728