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28460544 = 29372647
BaseRepresentation
bin110110010010…
…0011000000000
31222112221112020
41230210120000
524241214134
62454001440
7463624230
oct154443000
958487466
1028460544
1115079912
129646280
135b86378
143acbcc0
152772b49
hex1b24600

28460544 has 80 divisors (see below), whose sum is σ = 86684928. Its totient is φ = 8128512.

The previous prime is 28460527. The next prime is 28460561. The reversal of 28460544 is 44506482.

It is an interprime number because it is at equal distance from previous prime (28460527) and next prime (28460561).

It is a congruent number.

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, 9429 + ... + 12075.

Almost surely, 228460544 is an apocalyptic number.

28460544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28460544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43342464).

28460544 is an abundant number, since it is smaller than the sum of its proper divisors (58224384).

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

28460544 is an equidigital number, since it uses as much as digits as its factorization.

28460544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 28460544 is about 5334.8424531564. The cubic root of 28460544 is about 305.3147123308.

The spelling of 28460544 in words is "twenty-eight million, four hundred sixty thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1344 1536 1792 2647 2688 3584 5294 5376 7941 10588 10752 15882 18529 21176 31764 37058 42352 55587 63528 74116 84704 111174 127056 148232 169408 222348 254112 296464 338816 444696 508224 592928 677632 889392 1016448 1185856 1355264 1778784 2032896 2371712 3557568 4065792 4743424 7115136 9486848 14230272 28460544