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1428283008 = 273253149157
BaseRepresentation
bin101010100100001…
…1101111010000000
310200112120021221200
41111020131322000
510411120024013
6353421021200
750252130255
oct12510357200
93615507850
101428283008
11673257189
1233a3b4800
13199ba2099
14d799542c
15855cee73
hex5521de80

1428283008 has 192 divisors, whose sum is σ = 4242537000. Its totient is φ = 461021184.

The previous prime is 1428283001. The next prime is 1428283009. The reversal of 1428283008 is 8003828241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 968952384 + 459330624 = 31128^2 + 21432^2 .

It is a tau number, because it is divible by the number of its divisors (192).

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

It is not an unprimeable number, because it can be changed into a prime (1428283001) 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 23 ways as a sum of consecutive naturals, for example, 9097266 + ... + 9097422.

Almost surely, 21428283008 is an apocalyptic number.

1428283008 is a gapful number since it is divisible by the number (18) 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 1428283008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121268500).

1428283008 is an abundant number, since it is smaller than the sum of its proper divisors (2814253992).

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

1428283008 is a wasteful number, since it uses less digits than its factorization.

1428283008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1428283008 is about 37792.6316627990. The cubic root of 1428283008 is about 1126.1720809622.

The spelling of 1428283008 in words is "one billion, four hundred twenty-eight million, two hundred eighty-three thousand, eight".