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28059846240 = 253558458013
BaseRepresentation
bin11010001000011111…
…110100011001100000
32200102112112212202110
4122020133310121200
5424431310034430
620520203515320
72012230520616
oct321037643140
980375485673
1028059846240
111099a062878
125531228b40
132852442a1a
1415028cb6b6
15ae36387b0
hex6887f4660

28059846240 has 48 divisors (see below), whose sum is σ = 88388517168. Its totient is φ = 7482625536.

The previous prime is 28059846211. The next prime is 28059846257. The reversal of 28059846240 is 4264895082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 28059846240.

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, 29228527 + ... + 29229486.

It is an arithmetic number, because the mean of its divisors is an integer number (1841427441).

Almost surely, 228059846240 is an apocalyptic number.

28059846240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28059846240 is an abundant number, since it is smaller than the sum of its proper divisors (60328670928).

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

28059846240 is a wasteful number, since it uses less digits than its factorization.

28059846240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58458031 (or 58458023 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 28059846240 in words is "twenty-eight billion, fifty-nine million, eight hundred forty-six thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 58458013 116916026 175374039 233832052 292290065 350748078 467664104 584580130 701496156 876870195 935328208 1169160260 1402992312 1753740390 1870656416 2338320520 2805984624 3507480780 4676641040 5611969248 7014961560 9353282080 14029923120 28059846240