Base | Representation |
---|---|
bin | 11100110100010000000… |
… | …11001000100100100010 |
3 | 10111122200111212111111010 |
4 | 32122020003020210202 |
5 | 112210234000012434 |
6 | 2034505051001350 |
7 | 131351135434323 |
oct | 16321003104442 |
9 | 3448614774433 |
10 | 990125000994 |
11 | 351a00828a98 |
12 | 13ba86a39256 |
13 | 724a346666c |
14 | 35ccab4244a |
15 | 1ab4e84a9e9 |
hex | e6880c8922 |
990125000994 has 64 divisors (see below), whose sum is σ = 2076466734720. Its totient is φ = 314443399680.
The previous prime is 990125000933. The next prime is 990125000999. The reversal of 990125000994 is 499000521099.
It is not an unprimeable number, because it can be changed into a prime (990125000999) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032864 + ... + 2472404.
It is an arithmetic number, because the mean of its divisors is an integer number (32444792730).
Almost surely, 2990125000994 is an apocalyptic number.
990125000994 is an abundant number, since it is smaller than the sum of its proper divisors (1086341733726).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
990125000994 is a wasteful number, since it uses less digits than its factorization.
990125000994 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 439795.
The product of its (nonzero) digits is 262440, while the sum is 48.
The spelling of 990125000994 in words is "nine hundred ninety billion, one hundred twenty-five million, nine hundred ninety-four", and thus it is an aban number.
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