Base | Representation |
---|---|
bin | 111100100000101… |
… | …1100011010010110 |
3 | 12020111121002220000 |
4 | 1321001130122112 |
5 | 13124241443104 |
6 | 533250552130 |
7 | 101213204442 |
oct | 17101343226 |
9 | 5214532800 |
10 | 2030421654 |
11 | 952135928 |
12 | 487b98646 |
13 | 264869241 |
14 | 153937822 |
15 | bd3c1639 |
hex | 7905c696 |
2030421654 has 80 divisors (see below), whose sum is σ = 4631450208. Its totient is φ = 664754688.
The previous prime is 2030421649. The next prime is 2030421671. The reversal of 2030421654 is 4561240302.
2030421654 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 4 + 2 + 1 + 654 = 666.
It is a super-2 number, since 2×20304216542 = 8245224186064191432, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2466687 + ... + 2467509.
Almost surely, 22030421654 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2030421654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315725104).
2030421654 is an abundant number, since it is smaller than the sum of its proper divisors (2601028554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2030421654 is a wasteful number, since it uses less digits than its factorization.
2030421654 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1091 (or 1082 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 27.
The square root of 2030421654 is about 45060.2003324442. The cubic root of 2030421654 is about 1266.2770782322.
Adding to 2030421654 its reverse (4561240302), we get a palindrome (6591661956).
The spelling of 2030421654 in words is "two billion, thirty million, four hundred twenty-one thousand, six hundred fifty-four".
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