Base | Representation |
---|---|
bin | 101011010101100100000… |
… | …111111101000100101100 |
3 | 101112200222100202211021000 |
4 | 223111210013331010230 |
5 | 342243113042033032 |
6 | 10200041110040300 |
7 | 425105620354416 |
oct | 53254407750454 |
9 | 11480870684230 |
10 | 2978092142892 |
11 | a49002415449 |
12 | 401211049090 |
13 | 187aa9b00349 |
14 | a41d749d9b6 |
15 | 52701266e7c |
hex | 2b5641fd12c |
2978092142892 has 108 divisors (see below), whose sum is σ = 7767615262680. Its totient is φ = 986737263120.
The previous prime is 2978092142833. The next prime is 2978092142917. The reversal of 2978092142892 is 2982412908792.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
2978092142892 is a `hidden beast` number, since 29 + 7 + 80 + 9 + 21 + 428 + 92 = 666.
2978092142892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (108).
It is a super-2 number, since 2×29780921428922 (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 35 ways as a sum of consecutive naturals, for example, 3784106523 + ... + 3784107309.
Almost surely, 22978092142892 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2978092142892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3883807631340).
2978092142892 is an abundant number, since it is smaller than the sum of its proper divisors (4789523119788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2978092142892 is an frugal number, since it uses more digits than its factorization.
2978092142892 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2009 (or 1003 counting only the distinct ones).
The product of its (nonzero) digits is 20901888, while the sum is 63.
The spelling of 2978092142892 in words is "two trillion, nine hundred seventy-eight billion, ninety-two million, one hundred forty-two thousand, eight hundred ninety-two".
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