Base | Representation |
---|---|
bin | 1010001100110100… |
… | …1100001001100010 |
3 | 21001211022010012220 |
4 | 2203031030021202 |
5 | 21101431100332 |
6 | 1131411531510 |
7 | 124565560440 |
oct | 24315141142 |
9 | 7054263186 |
10 | 2738143842 |
11 | 1185679aa5 |
12 | 644bb9b96 |
13 | 348380475 |
14 | 1bd921b90 |
15 | 1105bbd2c |
hex | a334c262 |
2738143842 has 16 divisors (see below), whose sum is σ = 6258614592. Its totient is φ = 782326800.
The previous prime is 2738143801. The next prime is 2738143843. The reversal of 2738143842 is 2483418372.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 65193901 = 2738143842 / (2 + 7 + 3 + 8 + 1 + 4 + 3 + 8 + 4 + 2).
It is a junction number, because it is equal to n+sod(n) for n = 2738143794 and 2738143803.
It is not an unprimeable number, because it can be changed into a prime (2738143843) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32596909 + ... + 32596992.
It is an arithmetic number, because the mean of its divisors is an integer number (391163412).
Almost surely, 22738143842 is an apocalyptic number.
2738143842 is an abundant number, since it is smaller than the sum of its proper divisors (3520470750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2738143842 is a wasteful number, since it uses less digits than its factorization.
2738143842 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65193913.
The product of its digits is 258048, while the sum is 42.
The square root of 2738143842 is about 52327.2762715584. The cubic root of 2738143842 is about 1399.0033454157.
The spelling of 2738143842 in words is "two billion, seven hundred thirty-eight million, one hundred forty-three thousand, eight hundred forty-two".
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