Base | Representation |
---|---|
bin | 1100011101101110111… |
… | …1011001000111000111 |
3 | 202110201210020201002020 |
4 | 3013123233121013013 |
5 | 12002024322001211 |
6 | 242212524014223 |
7 | 21320406143304 |
oct | 3073357310707 |
9 | 673653221066 |
10 | 214140031431 |
11 | 828a8513097 |
12 | 35603091373 |
13 | 17268949791 |
14 | a51600a0ab |
15 | 5884a18306 |
hex | 31dbbd91c7 |
214140031431 has 32 divisors (see below), whose sum is σ = 291017016000. Its totient is φ = 140042572800.
The previous prime is 214140031409. The next prime is 214140031439. The reversal of 214140031431 is 134130041412.
It is not a de Polignac number, because 214140031431 - 215 = 214139998663 is a prime.
It is a super-2 number, since 2×2141400314312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214140031439) 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 31 ways as a sum of consecutive naturals, for example, 18459325 + ... + 18470921.
It is an arithmetic number, because the mean of its divisors is an integer number (9094281750).
Almost surely, 2214140031431 is an apocalyptic number.
214140031431 is a deficient number, since it is larger than the sum of its proper divisors (76876984569).
214140031431 is a wasteful number, since it uses less digits than its factorization.
214140031431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12259.
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 214140031431 its reverse (134130041412), we get a palindrome (348270072843).
The spelling of 214140031431 in words is "two hundred fourteen billion, one hundred forty million, thirty-one thousand, four hundred thirty-one".
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