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28124062336 = 271723415521
BaseRepresentation
bin11010001100010100…
…110010001010000000
32200121000101101200101
4122030110302022000
5430044224443321
620530420132144
72013640404556
oct321424621200
980530341611
1028124062336
1110a22333327
12554a837054
132862837a06
14150b245bd6
15ae90c0791
hex68c532280

28124062336 has 64 divisors (see below), whose sum is σ = 59360285160. Its totient is φ = 13226803200.

The previous prime is 28124062313. The next prime is 28124062349. The reversal of 28124062336 is 63326042182.

It can be written as a sum of positive squares in 4 ways, for example, as 25967388736 + 2156673600 = 161144^2 + 46440^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 28124062295 and 28124062304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091256 + ... + 5096776.

Almost surely, 228124062336 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 28124062336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29680142580).

28124062336 is an abundant number, since it is smaller than the sum of its proper divisors (31236222824).

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

28124062336 is a wasteful number, since it uses less digits than its factorization.

28124062336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893 (or 7881 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 28124062336 in words is "twenty-eight billion, one hundred twenty-four million, sixty-two thousand, three hundred thirty-six".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 272 544 1088 2176 2341 4682 5521 9364 11042 18728 22084 37456 39797 44168 74912 79594 88336 93857 149824 159188 176672 187714 299648 318376 353344 375428 636752 706688 750856 1273504 1501712 2547008 3003424 5094016 6006848 12013696 12924661 25849322 51698644 103397288 206794576 219719237 413589152 439438474 827178304 878876948 1654356608 1757753896 3515507792 7031015584 14062031168 28124062336