Base | Representation |
---|---|
bin | 11000011100011010… |
… | …11101001101011000 |
3 | 1020212120211020120020 |
4 | 30032031131031120 |
5 | 203334031413144 |
6 | 10010114030440 |
7 | 643131204150 |
oct | 141615351530 |
9 | 36776736506 |
10 | 13123310424 |
11 | 56248483a4 |
12 | 2662b78420 |
13 | 1311ab7653 |
14 | 8c6ca7760 |
15 | 51c1ad419 |
hex | 30e35d358 |
13123310424 has 64 divisors (see below), whose sum is σ = 37672976640. Its totient is φ = 3731736960.
The previous prime is 13123310423. The next prime is 13123310597. The reversal of 13123310424 is 42401332131.
It is a happy number.
13123310424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a junction number, because it is equal to n+sod(n) for n = 13123310394 and 13123310403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123310423) 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 15 ways as a sum of consecutive naturals, for example, 149659 + ... + 220554.
It is an arithmetic number, because the mean of its divisors is an integer number (588640260).
Almost surely, 213123310424 is an apocalyptic number.
13123310424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
13123310424 is an abundant number, since it is smaller than the sum of its proper divisors (24549666216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13123310424 is a wasteful number, since it uses less digits than its factorization.
13123310424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 370440 (or 370436 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 13123310424 its reverse (42401332131), we get a palindrome (55524642555).
The spelling of 13123310424 in words is "thirteen billion, one hundred twenty-three million, three hundred ten thousand, four hundred twenty-four".
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