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28202130000 = 2432541161467
BaseRepresentation
bin11010010000111110…
…100101101001010000
32200210110021122101100
4122100332211221100
5430224221130000
620542245304400
72015606102232
oct322076455120
980713248340
1028202130000
1110a62404760
125570a05100
132875a6c6b5
141517768252
15b00d91a00
hex690fa5a50

28202130000 has 600 divisors, whose sum is σ = 109590994656. Its totient is φ = 6710400000.

The previous prime is 28202129987. The next prime is 28202130031. The reversal of 28202130000 is 3120282.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 60389767 + ... + 60390233.

Almost surely, 228202130000 is an apocalyptic number.

28202130000 is a gapful number since it is divisible by the number (20) 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 28202130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54795497328).

28202130000 is an abundant number, since it is smaller than the sum of its proper divisors (81388864656).

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

28202130000 is a wasteful number, since it uses less digits than its factorization.

28202130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 28202130000 its reverse (3120282), we get a palindrome (28205250282).

The spelling of 28202130000 in words is "twenty-eight billion, two hundred two million, one hundred thirty thousand".