Base | Representation |
---|---|
bin | 101001001100011000000… |
… | …111001010000011001100 |
3 | 101000121202110222220010201 |
4 | 221030120013022003030 |
5 | 332334423210234140 |
6 | 10004240202343244 |
7 | 411342364540144 |
oct | 51143007120314 |
9 | 11017673886121 |
10 | 2830787977420 |
11 | 9a1592018717 |
12 | 3987611bab24 |
13 | 176c32c09660 |
14 | 9b021b79924 |
15 | 4d97e19849a |
hex | 293181ca0cc |
2830787977420 has 48 divisors (see below), whose sum is σ = 6402298926240. Its totient is φ = 1045154750976.
The previous prime is 2830787977403. The next prime is 2830787977439. The reversal of 2830787977420 is 247797870382.
It is a super-2 number, since 2×28307879774202 (a number of 26 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4424319 + ... + 5023561.
It is an arithmetic number, because the mean of its divisors is an integer number (133381227630).
Almost surely, 22830787977420 is an apocalyptic number.
2830787977420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2830787977420 is an abundant number, since it is smaller than the sum of its proper divisors (3571510948820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2830787977420 is a wasteful number, since it uses less digits than its factorization.
2830787977420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 617434 (or 617432 counting only the distinct ones).
The product of its (nonzero) digits is 66382848, while the sum is 64.
The spelling of 2830787977420 in words is "two trillion, eight hundred thirty billion, seven hundred eighty-seven million, nine hundred seventy-seven thousand, four hundred twenty".
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