Base | Representation |
---|---|
bin | 10111000110101101… |
… | …01001110110101111 |
3 | 1012000110212210101010 |
4 | 23203112221312233 |
5 | 200401000114411 |
6 | 5410511120303 |
7 | 616250551350 |
oct | 134326516657 |
9 | 35013783333 |
10 | 12404301231 |
11 | 52959a5123 |
12 | 24a2213093 |
13 | 1228b50b1a |
14 | 8595c1d27 |
15 | 4c8ed37a6 |
hex | 2e35a9daf |
12404301231 has 16 divisors (see below), whose sum is σ = 19006227968. Its totient is φ = 7049008800.
The previous prime is 12404301197. The next prime is 12404301257. The reversal of 12404301231 is 13210340421.
It is not a de Polignac number, because 12404301231 - 29 = 12404300719 is a prime.
It is a super-2 number, since 2×124043012312 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 12404301198 and 12404301207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12404301271) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627915 + ... + 1635516.
It is an arithmetic number, because the mean of its divisors is an integer number (1187889248).
Almost surely, 212404301231 is an apocalyptic number.
12404301231 is a deficient number, since it is larger than the sum of its proper divisors (6601926737).
12404301231 is a wasteful number, since it uses less digits than its factorization.
12404301231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3263622.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 12404301231 its reverse (13210340421), we get a palindrome (25614641652).
The spelling of 12404301231 in words is "twelve billion, four hundred four million, three hundred one thousand, two hundred thirty-one".
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