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2728505062920 = 23357132928373037
BaseRepresentation
bin100111101101000111100…
…100110011011000001000
3100122211202012122110221010
4213231013210303120020
5324200434244003140
65445242524443520
7401061620240220
oct47550744633010
910584665573833
102728505062920
11962174a8111a
123809769a95a0
1316a3b2457740
14960bb857080
154ae94814880
hex27b47933608

2728505062920 has 512 divisors, whose sum is σ = 10428982502400. Its totient is φ = 555454513152.

The previous prime is 2728505062847. The next prime is 2728505062931. The reversal of 2728505062920 is 292605058272.

It is a self number, because there is not a number n which added to its sum of digits gives 2728505062920.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 898419642 + ... + 898422678.

It is an arithmetic number, because the mean of its divisors is an integer number (20369106450).

Almost surely, 22728505062920 is an apocalyptic number.

2728505062920 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 2728505062920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5214491251200).

2728505062920 is an abundant number, since it is smaller than the sum of its proper divisors (7700477439480).

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

2728505062920 is a wasteful number, since it uses less digits than its factorization.

2728505062920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937 (or 5933 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 2728505062920 in words is "two trillion, seven hundred twenty-eight billion, five hundred five million, sixty-two thousand, nine hundred twenty".