Base | Representation |
---|---|
bin | 11100111011111011101… |
… | …110010010111001100100 |
3 | 21001002122212000012100020 |
4 | 130323323232102321210 |
5 | 230034421003424004 |
6 | 4121300423315140 |
7 | 263443560015162 |
oct | 34737356227144 |
9 | 7032585005306 |
10 | 1988498108004 |
11 | 6a7354384121 |
12 | 281473babab0 |
13 | 11568c671715 |
14 | 6c35b094232 |
15 | 36ad334e8d9 |
hex | 1cefbb92e64 |
1988498108004 has 48 divisors (see below), whose sum is σ = 4818073518720. Its totient is φ = 637543002880.
The previous prime is 1988498107961. The next prime is 1988498108057. The reversal of 1988498108004 is 4008018948891.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10771737 + ... + 10954784.
It is an arithmetic number, because the mean of its divisors is an integer number (100376531640).
Almost surely, 21988498108004 is an apocalyptic number.
It is an amenable number.
1988498108004 is an abundant number, since it is smaller than the sum of its proper divisors (2829575410716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1988498108004 is a wasteful number, since it uses less digits than its factorization.
1988498108004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21726820 (or 21726818 counting only the distinct ones).
The product of its (nonzero) digits is 5308416, while the sum is 60.
The spelling of 1988498108004 in words is "one trillion, nine hundred eighty-eight billion, four hundred ninety-eight million, one hundred eight thousand, four".
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