Base | Representation |
---|---|
bin | 1010010110111010… |
… | …1111010011100110 |
3 | 21011202222200101100 |
4 | 2211232233103212 |
5 | 21143301234110 |
6 | 1135523340530 |
7 | 125621541450 |
oct | 24556572346 |
9 | 7152880340 |
10 | 2780493030 |
11 | 11a7574627 |
12 | 657221746 |
13 | 35408a363 |
14 | 1c53c72d0 |
15 | 114184bc0 |
hex | a5baf4e6 |
2780493030 has 96 divisors (see below), whose sum is σ = 8546990400. Its totient is φ = 613622016.
The previous prime is 2780493007. The next prime is 2780493043. The reversal of 2780493030 is 303940872.
It is a super-2 number, since 2×27804930302 = 15462282979757161800, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57825 + ... + 94364.
It is an arithmetic number, because the mean of its divisors is an integer number (89031150).
Almost surely, 22780493030 is an apocalyptic number.
2780493030 is an abundant number, since it is smaller than the sum of its proper divisors (5766497370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2780493030 is a wasteful number, since it uses less digits than its factorization.
2780493030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 152238 (or 152235 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 2780493030 is about 52730.3805220482. The cubic root of 2780493030 is about 1406.1789861621.
The spelling of 2780493030 in words is "two billion, seven hundred eighty million, four hundred ninety-three thousand, thirty".
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