Base | Representation |
---|---|
bin | 1000001001011… |
… | …10101001111110 |
3 | 11202121110120111 |
4 | 10010232221332 |
5 | 114444123132 |
6 | 10440540234 |
7 | 1456644613 |
oct | 404565176 |
9 | 152543514 |
10 | 68348542 |
11 | 356432a9 |
12 | 1aa8167a |
13 | 11210c32 |
14 | 911250a |
15 | 6001647 |
hex | 412ea7e |
68348542 has 4 divisors (see below), whose sum is σ = 102522816. Its totient is φ = 34174270.
The previous prime is 68348507. The next prime is 68348549. The reversal of 68348542 is 24584386.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24584386 = 2 ⋅12292193.
It is a junction number, because it is equal to n+sod(n) for n = 68348495 and 68348504.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68348549) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17087134 + ... + 17087137.
It is an arithmetic number, because the mean of its divisors is an integer number (25630704).
Almost surely, 268348542 is an apocalyptic number.
68348542 is a deficient number, since it is larger than the sum of its proper divisors (34174274).
68348542 is a wasteful number, since it uses less digits than its factorization.
68348542 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34174273.
The product of its digits is 184320, while the sum is 40.
The square root of 68348542 is about 8267.3177028586. The cubic root of 68348542 is about 408.8616888752.
It can be divided in two parts, 6834 and 8542, that added together give a square (15376 = 1242).
The spelling of 68348542 in words is "sixty-eight million, three hundred forty-eight thousand, five hundred forty-two".
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