Base | Representation |
---|---|
bin | 100011111011001… |
… | …0010100011111110 |
3 | 10010000012101100020 |
4 | 1013312102203332 |
5 | 4432041223032 |
6 | 315340113010 |
7 | 41604564642 |
oct | 10766224376 |
9 | 3100171306 |
10 | 1205414142 |
11 | 569474539 |
12 | 297835766 |
13 | 16296b90a |
14 | b613cc22 |
15 | 70c59b2c |
hex | 47d928fe |
1205414142 has 16 divisors (see below), whose sum is σ = 2414483472. Its totient is φ = 401195520.
The previous prime is 1205414113. The next prime is 1205414143. The reversal of 1205414142 is 2414145021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1205414143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148003 + ... + 155934.
It is an arithmetic number, because the mean of its divisors is an integer number (150905217).
Almost surely, 21205414142 is an apocalyptic number.
1205414142 is an abundant number, since it is smaller than the sum of its proper divisors (1209069330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1205414142 is a wasteful number, since it uses less digits than its factorization.
1205414142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 304603.
The product of its (nonzero) digits is 1280, while the sum is 24.
The square root of 1205414142 is about 34719.0746132439. The cubic root of 1205414142 is about 1064.2543339983.
Adding to 1205414142 its reverse (2414145021), we get a palindrome (3619559163).
The spelling of 1205414142 in words is "one billion, two hundred five million, four hundred fourteen thousand, one hundred forty-two".
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