Base | Representation |
---|---|
bin | 100100101100110… |
… | …0000111101001010 |
3 | 10011211010220000110 |
4 | 1021121200331022 |
5 | 10010221102404 |
6 | 322105415150 |
7 | 42341641245 |
oct | 11131407512 |
9 | 3154126013 |
10 | 1231425354 |
11 | 582120105 |
12 | 2a449a4b6 |
13 | 168178173 |
14 | b979025c |
15 | 73196b89 |
hex | 49660f4a |
1231425354 has 16 divisors (see below), whose sum is σ = 2463802848. Its totient is φ = 410316432.
The previous prime is 1231425353. The next prime is 1231425389. The reversal of 1231425354 is 4535241321.
It is not an unprimeable number, because it can be changed into a prime (1231425353) 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, 22272 + ... + 54395.
It is an arithmetic number, because the mean of its divisors is an integer number (153987678).
Almost surely, 21231425354 is an apocalyptic number.
1231425354 is an abundant number, since it is smaller than the sum of its proper divisors (1232377494).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1231425354 is a wasteful number, since it uses less digits than its factorization.
1231425354 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79349.
The product of its digits is 14400, while the sum is 30.
The square root of 1231425354 is about 35091.6707211270. The cubic root of 1231425354 is about 1071.8549806844.
Adding to 1231425354 its reverse (4535241321), we get a palindrome (5766666675).
The spelling of 1231425354 in words is "one billion, two hundred thirty-one million, four hundred twenty-five thousand, three hundred fifty-four".
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