Base | Representation |
---|---|
bin | 101010010101110… |
… | …1110011111001100 |
3 | 10200000101111220000 |
4 | 1110223232133030 |
5 | 10402202424443 |
6 | 352551324300 |
7 | 50131110426 |
oct | 12453563714 |
9 | 3600344800 |
10 | 1420748748 |
11 | 669a80621 |
12 | 337980690 |
13 | 198464943 |
14 | d6993816 |
15 | 84ae28d3 |
hex | 54aee7cc |
1420748748 has 30 divisors (see below), whose sum is σ = 3714118716. Its totient is φ = 473582808.
The previous prime is 1420748737. The next prime is 1420748779. The reversal of 1420748748 is 8478470241.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2192190 + ... + 2192837.
Almost surely, 21420748748 is an apocalyptic number.
1420748748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1420748748 is an abundant number, since it is smaller than the sum of its proper divisors (2293369968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1420748748 is a wasteful number, since it uses less digits than its factorization.
1420748748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4385043 (or 4385032 counting only the distinct ones).
The product of its (nonzero) digits is 401408, while the sum is 45.
The square root of 1420748748 is about 37692.8209079660. The cubic root of 1420748748 is about 1124.1883852800.
The spelling of 1420748748 in words is "one billion, four hundred twenty million, seven hundred forty-eight thousand, seven hundred forty-eight".
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