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65028481200 = 243252139129953
BaseRepresentation
bin111100100011111111…
…111110000010110000
320012211221120010011200
4330203333332002300
52031134242344300
645512414011200
74461315653514
oct744377760260
9205757503150
1065028481200
112563a978451
1210729aa6b00
13619447b657
14320c64a144
151a58e33200
hexf23ffe0b0

65028481200 has 180 divisors, whose sum is σ = 227292145080. Its totient is φ = 17216040960.

The previous prime is 65028481169. The next prime is 65028481211. The reversal of 65028481200 is 218482056.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 435424 + ... + 565376.

Almost surely, 265028481200 is an apocalyptic number.

65028481200 is a gapful number since it is divisible by the number (60) 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 65028481200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113646072540).

65028481200 is an abundant number, since it is smaller than the sum of its proper divisors (162263663880).

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

65028481200 is a wasteful number, since it uses less digits than its factorization.

65028481200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130116 (or 130102 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 65028481200 in words is "sixty-five billion, twenty-eight million, four hundred eighty-one thousand, two hundred".