Base | Representation |
---|---|
bin | 11001011100010… |
… | …10110110111001 |
3 | 112212121100111022 |
4 | 30232022312321 |
5 | 414114222224 |
6 | 33102312225 |
7 | 5201056664 |
oct | 1456126671 |
9 | 485540438 |
10 | 213429689 |
11 | aa525980 |
12 | 5b588675 |
13 | 352a9c75 |
14 | 204ba6db |
15 | 13b0d65e |
hex | cb8adb9 |
213429689 has 8 divisors (see below), whose sum is σ = 234004800. Its totient is φ = 193050000.
The previous prime is 213429677. The next prime is 213429707. The reversal of 213429689 is 986924312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 213429689 - 224 = 196652473 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (213429649) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46562 + ... + 50939.
It is an arithmetic number, because the mean of its divisors is an integer number (29250600).
Almost surely, 2213429689 is an apocalyptic number.
It is an amenable number.
213429689 is a deficient number, since it is larger than the sum of its proper divisors (20575111).
213429689 is a wasteful number, since it uses less digits than its factorization.
213429689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97711.
The product of its digits is 186624, while the sum is 44.
The square root of 213429689 is about 14609.2330051923. The cubic root of 213429689 is about 597.6105794882.
The spelling of 213429689 in words is "two hundred thirteen million, four hundred twenty-nine thousand, six hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •