Base | Representation |
---|---|
bin | 1110001100111100010110… |
… | …01011101101010100000101 |
3 | 11002120122210000222200022200 |
4 | 13012132023023231110011 |
5 | 13043142133312431204 |
6 | 150231202012145113 |
7 | 6402240225365022 |
oct | 706361313552405 |
9 | 132518700880280 |
10 | 31231042311429 |
11 | 9a51013214184 |
12 | 3604950a68199 |
13 | 14570c8021b6c |
14 | 79d83a522549 |
15 | 3925ced7b539 |
hex | 1c678b2ed505 |
31231042311429 has 6 divisors (see below), whose sum is σ = 45111505560966. Its totient is φ = 20820694874280.
The previous prime is 31231042311419. The next prime is 31231042311431. The reversal of 31231042311429 is 92411324013213.
31231042311429 is a `hidden beast` number, since 3 + 1 + 2 + 310 + 4 + 2 + 311 + 4 + 29 = 666.
It can be written as a sum of positive squares in only one way, i.e., 19778388344100 + 11452653967329 = 4447290^2 + 3384177^2 .
It is not a de Polignac number, because 31231042311429 - 229 = 31230505440517 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31231042311393 and 31231042311402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31231042311419) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1735057906182 + ... + 1735057906199.
It is an arithmetic number, because the mean of its divisors is an integer number (7518584260161).
Almost surely, 231231042311429 is an apocalyptic number.
It is an amenable number.
31231042311429 is a deficient number, since it is larger than the sum of its proper divisors (13880463249537).
31231042311429 is a wasteful number, since it uses less digits than its factorization.
31231042311429 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3470115812387 (or 3470115812384 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The spelling of 31231042311429 in words is "thirty-one trillion, two hundred thirty-one billion, forty-two million, three hundred eleven thousand, four hundred twenty-nine".
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