Base | Representation |
---|---|
bin | 1000010001010… |
… | …10110000010110 |
3 | 11211112221000221 |
4 | 10020222300112 |
5 | 120230144032 |
6 | 10515024554 |
7 | 1501505245 |
oct | 410526026 |
9 | 154487027 |
10 | 69381142 |
11 | 36189096 |
12 | 1b29b15a |
13 | 114b2c3c |
14 | 930095c |
15 | 6157597 |
hex | 422ac16 |
69381142 has 16 divisors (see below), whose sum is σ = 107954352. Its totient is φ = 33415200.
The previous prime is 69381139. The next prime is 69381157. The reversal of 69381142 is 24118396.
It is a junction number, because it is equal to n+sod(n) for n = 69381098 and 69381107.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833 + ... + 12115.
It is an arithmetic number, because the mean of its divisors is an integer number (6747147).
Almost surely, 269381142 is an apocalyptic number.
69381142 is a deficient number, since it is larger than the sum of its proper divisors (38573210).
69381142 is a wasteful number, since it uses less digits than its factorization.
69381142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9423.
The product of its digits is 10368, while the sum is 34.
The square root of 69381142 is about 8329.5343207169. The cubic root of 69381142 is about 410.9104139511.
The spelling of 69381142 in words is "sixty-nine million, three hundred eighty-one thousand, one hundred forty-two".
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