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19028331072 = 2632239277499
BaseRepresentation
bin10001101110001011…
…010100101001000000
31211010010011101001200
4101232023110221000
5302432223043242
612424055101200
71242353100612
oct215613245100
954103141050
1019028331072
118084aa6853
123830671800
131a432a9bca
14cc7230db2
157657d404c
hex46e2d4a40

19028331072 has 168 divisors, whose sum is σ = 55077360000. Its totient is φ = 6280823808.

The previous prime is 19028331067. The next prime is 19028331107. The reversal of 19028331072 is 27013382091.

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 23 ways as a sum of consecutive naturals, for example, 38132679 + ... + 38133177.

Almost surely, 219028331072 is an apocalyptic number.

19028331072 is a gapful number since it is divisible by the number (12) 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 19028331072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27538680000).

19028331072 is an abundant number, since it is smaller than the sum of its proper divisors (36049028928).

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

19028331072 is a wasteful number, since it uses less digits than its factorization.

19028331072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 19028331072 in words is "nineteen billion, twenty-eight million, three hundred thirty-one thousand, seventy-two".