Base | Representation |
---|---|
bin | 11110111110101111001… |
… | …100000111010111110101 |
3 | 21112112012001020222020000 |
4 | 132332233030013113311 |
5 | 234340041142001440 |
6 | 4310005240101513 |
7 | 306545213264523 |
oct | 36765714072765 |
9 | 7475161228200 |
10 | 2128948000245 |
11 | 75097770aa30 |
12 | 2a4730464899 |
13 | 1259b34c3331 |
14 | 75082353313 |
15 | 3a5a37dc730 |
hex | 1efaf3075f5 |
2128948000245 has 80 divisors (see below), whose sum is σ = 4175073156672. Its totient is φ = 1029292323840.
The previous prime is 2128948000163. The next prime is 2128948000297. The reversal of 2128948000245 is 5420008498212.
2128948000245 is a `hidden beast` number, since 2 + 128 + 9 + 480 + 0 + 0 + 2 + 45 = 666.
It is not a de Polignac number, because 2128948000245 - 210 = 2128947999221 is a prime.
It is a super-3 number, since 3×21289480002453 (a number of 38 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 2128948000245.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 895734 + ... + 2249496.
Almost surely, 22128948000245 is an apocalyptic number.
It is an amenable number.
2128948000245 is a deficient number, since it is larger than the sum of its proper divisors (2046125156427).
2128948000245 is a wasteful number, since it uses less digits than its factorization.
2128948000245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1354144 (or 1354135 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 2128948000245 in words is "two trillion, one hundred twenty-eight billion, nine hundred forty-eight million, two hundred forty-five", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •