Base | Representation |
---|---|
bin | 11101001100110110… |
… | …000100101011000101 |
3 | 2222221010002221221210 |
4 | 131030312010223011 |
5 | 1003203111430110 |
6 | 22223121202033 |
7 | 2156660503500 |
oct | 351466045305 |
9 | 88833087853 |
10 | 31354014405 |
11 | 1232a5840aa |
12 | 60b0490319 |
13 | 2c58a6275c |
14 | 17361ca137 |
15 | c37938520 |
hex | 74cd84ac5 |
31354014405 has 24 divisors (see below), whose sum is σ = 58356860832. Its totient is φ = 14333263392.
The previous prime is 31354014397. The next prime is 31354014409. The reversal of 31354014405 is 50441045313.
It is not a de Polignac number, because 31354014405 - 23 = 31354014397 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31354014409) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21328527 + ... + 21329996.
It is an arithmetic number, because the mean of its divisors is an integer number (2431535868).
Almost surely, 231354014405 is an apocalyptic number.
31354014405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
31354014405 is a deficient number, since it is larger than the sum of its proper divisors (27002846427).
31354014405 is a wasteful number, since it uses less digits than its factorization.
31354014405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42658545 (or 42658538 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 30.
Adding to 31354014405 its reverse (50441045313), we get a palindrome (81795059718).
The spelling of 31354014405 in words is "thirty-one billion, three hundred fifty-four million, fourteen thousand, four hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •