Base | Representation |
---|---|
bin | 1011101101101100… |
… | …1011100111110001 |
3 | 22010010212100220021 |
4 | 2323123023213301 |
5 | 22414440334011 |
6 | 1240004443441 |
7 | 140631340045 |
oct | 27333134761 |
9 | 8103770807 |
10 | 3144464881 |
11 | 1373a72008 |
12 | 7390a9581 |
13 | 3b15c5c0c |
14 | 21b890025 |
15 | 1360cd471 |
hex | bb6cb9f1 |
3144464881 has 4 divisors (see below), whose sum is σ = 3245899264. Its totient is φ = 3043030500.
The previous prime is 3144464861. The next prime is 3144464893. The reversal of 3144464881 is 1884644413.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1884644413 = 3911 ⋅481883.
It is a cyclic number.
It is not a de Polignac number, because 3144464881 - 225 = 3110910449 is a prime.
It is a super-2 number, since 2×31444648812 = 19775318775684688322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3144464801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50717145 + ... + 50717206.
It is an arithmetic number, because the mean of its divisors is an integer number (811474816).
Almost surely, 23144464881 is an apocalyptic number.
3144464881 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
3144464881 is a deficient number, since it is larger than the sum of its proper divisors (101434383).
3144464881 is a wasteful number, since it uses less digits than its factorization.
3144464881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101434382.
The product of its digits is 294912, while the sum is 43.
The square root of 3144464881 is about 56075.5283613093. The cubic root of 3144464881 is about 1465.0380900765.
The spelling of 3144464881 in words is "three billion, one hundred forty-four million, four hundred sixty-four thousand, eight hundred eighty-one".
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