Base | Representation |
---|---|
bin | 1000010011111111… |
… | …0010000001000110 |
3 | 12202111121102021000 |
4 | 2010333302001012 |
5 | 14032203444304 |
6 | 1005224434130 |
7 | 106202562060 |
oct | 20477620106 |
9 | 5674542230 |
10 | 2231312454 |
11 | a45577088 |
12 | 523318946 |
13 | 297375b37 |
14 | 1724ac730 |
15 | d0d54939 |
hex | 84ff2046 |
2231312454 has 64 divisors (see below), whose sum is σ = 5820019200. Its totient is φ = 620283744.
The previous prime is 2231312453. The next prime is 2231312467. The reversal of 2231312454 is 4542131322.
It is a super-3 number, since 3×22313124543 (a number of 29 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2231312453) 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, 65784 + ... + 93755.
It is an arithmetic number, because the mean of its divisors is an integer number (90937800).
Almost surely, 22231312454 is an apocalyptic number.
2231312454 is an abundant number, since it is smaller than the sum of its proper divisors (3588706746).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2231312454 is a wasteful number, since it uses less digits than its factorization.
2231312454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159594 (or 159588 counting only the distinct ones).
The product of its digits is 5760, while the sum is 27.
The square root of 2231312454 is about 47236.7701478414. The cubic root of 2231312454 is about 1306.7328123909.
Adding to 2231312454 its reverse (4542131322), we get a palindrome (6773443776).
The spelling of 2231312454 in words is "two billion, two hundred thirty-one million, three hundred twelve thousand, four hundred fifty-four".
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