Base | Representation |
---|---|
bin | 11001011001001… |
… | …01100110010011 |
3 | 112211211021112220 |
4 | 30230211212103 |
5 | 414012434211 |
6 | 33045352123 |
7 | 5164411533 |
oct | 1454454623 |
9 | 484737486 |
10 | 213014931 |
11 | aa2722a8 |
12 | 5b408643 |
13 | 3519324c |
14 | 2040d4c3 |
15 | 13a7a806 |
hex | cb25993 |
213014931 has 16 divisors (see below), whose sum is σ = 286682784. Its totient is φ = 140684544.
The previous prime is 213014927. The next prime is 213014933. The reversal of 213014931 is 139410312.
213014931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 213014931 - 22 = 213014927 is a prime.
It is a super-2 number, since 2×2130149312 = 90750721657869522, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (213014933) 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, 290241 + ... + 290973.
It is an arithmetic number, because the mean of its divisors is an integer number (17917674).
Almost surely, 2213014931 is an apocalyptic number.
213014931 is a deficient number, since it is larger than the sum of its proper divisors (73667853).
213014931 is a wasteful number, since it uses less digits than its factorization.
213014931 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1510.
The product of its (nonzero) digits is 648, while the sum is 24.
The square root of 213014931 is about 14595.0310379937. The cubic root of 213014931 is about 597.2232161660.
The spelling of 213014931 in words is "two hundred thirteen million, fourteen thousand, nine hundred thirty-one".
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