Base | Representation |
---|---|
bin | 1011101101110111… |
… | …0110010111100101 |
3 | 22010012011220021020 |
4 | 2323131312113211 |
5 | 22420130224021 |
6 | 1240031441353 |
7 | 140640312051 |
oct | 27335662745 |
9 | 8105156236 |
10 | 3145164261 |
11 | 13743aa508 |
12 | 739386259 |
13 | 3b17ac355 |
14 | 21b9d2c61 |
15 | 1361ba7c6 |
hex | bb7765e5 |
3145164261 has 4 divisors (see below), whose sum is σ = 4193552352. Its totient is φ = 2096776172.
The previous prime is 3145164227. The next prime is 3145164277. The reversal of 3145164261 is 1624615413.
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.
It is a cyclic number.
It is not a de Polignac number, because 3145164261 - 27 = 3145164133 is a prime.
It is a super-3 number, since 3×31451642613 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3145164361) 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, 524194041 + ... + 524194046.
It is an arithmetic number, because the mean of its divisors is an integer number (1048388088).
Almost surely, 23145164261 is an apocalyptic number.
It is an amenable number.
3145164261 is a deficient number, since it is larger than the sum of its proper divisors (1048388091).
3145164261 is a wasteful number, since it uses less digits than its factorization.
3145164261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1048388090.
The product of its digits is 17280, while the sum is 33.
The square root of 3145164261 is about 56081.7640681889. The cubic root of 3145164261 is about 1465.1466981040.
Adding to 3145164261 its reverse (1624615413), we get a palindrome (4769779674).
The spelling of 3145164261 in words is "three billion, one hundred forty-five million, one hundred sixty-four thousand, two hundred sixty-one".
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