Base | Representation |
---|---|
bin | 1011101101111000… |
… | …0010000111111111 |
3 | 22010012021100022201 |
4 | 2323132002013333 |
5 | 22420133244130 |
6 | 1240032452331 |
7 | 140640602332 |
oct | 27336020777 |
9 | 8105240281 |
10 | 3145212415 |
11 | 1374432704 |
12 | 7393aa0a7 |
13 | 3b17c8247 |
14 | 21ba06619 |
15 | 1361c9bca |
hex | bb7821ff |
3145212415 has 32 divisors (see below), whose sum is σ = 4195307520. Its totient is φ = 2252812800.
The previous prime is 3145212409. The next prime is 3145212419. The reversal of 3145212415 is 5142125413.
It is not a de Polignac number, because 3145212415 - 29 = 3145211903 is a prime.
It is a super-2 number, since 2×31452124152 = 19784722270940264450, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3145212419) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145350 + ... + 165580.
It is an arithmetic number, because the mean of its divisors is an integer number (131103360).
Almost surely, 23145212415 is an apocalyptic number.
3145212415 is a deficient number, since it is larger than the sum of its proper divisors (1050095105).
3145212415 is a wasteful number, since it uses less digits than its factorization.
3145212415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20343.
The product of its digits is 4800, while the sum is 28.
The square root of 3145212415 is about 56082.1933861364. The cubic root of 3145212415 is about 1465.1541754362.
Adding to 3145212415 its reverse (5142125413), we get a palindrome (8287337828).
The spelling of 3145212415 in words is "three billion, one hundred forty-five million, two hundred twelve thousand, four hundred fifteen".
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