Base | Representation |
---|---|
bin | 10001101010000101100… |
… | …111001110111100000101 |
3 | 11022000001111101022012202 |
4 | 101222011213032330011 |
5 | 124340042120311010 |
6 | 2325234421524245 |
7 | 153444511330610 |
oct | 21520547167405 |
9 | 4260044338182 |
10 | 1213422432005 |
11 | 428678368a03 |
12 | 177204873685 |
13 | 8a56b353374 |
14 | 42a31017177 |
15 | 2186d2826a5 |
hex | 11a859cef05 |
1213422432005 has 32 divisors (see below), whose sum is σ = 1709833432320. Its totient is φ = 809224819200.
The previous prime is 1213422431971. The next prime is 1213422432011. The reversal of 1213422432005 is 5002342243121.
It is not a de Polignac number, because 1213422432005 - 222 = 1213418237701 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2828705 + ... + 3229305.
It is an arithmetic number, because the mean of its divisors is an integer number (53432294760).
Almost surely, 21213422432005 is an apocalyptic number.
It is an amenable number.
1213422432005 is a deficient number, since it is larger than the sum of its proper divisors (496411000315).
1213422432005 is a wasteful number, since it uses less digits than its factorization.
1213422432005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 402989.
The product of its (nonzero) digits is 11520, while the sum is 29.
Adding to 1213422432005 its reverse (5002342243121), we get a palindrome (6215764675126).
The spelling of 1213422432005 in words is "one trillion, two hundred thirteen billion, four hundred twenty-two million, four hundred thirty-two thousand, five".
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