Base | Representation |
---|---|
bin | 1010001011010… |
… | …1101001011100 |
3 | 2222022201122112 |
4 | 2202311221130 |
5 | 41411441233 |
6 | 4122533152 |
7 | 1025556044 |
oct | 242655134 |
9 | 88281575 |
10 | 42687068 |
11 | 22106476 |
12 | 123671b8 |
13 | 8ac7928 |
14 | 5952724 |
15 | 3b33048 |
hex | 28b5a5c |
42687068 has 48 divisors (see below), whose sum is σ = 82682208. Its totient is φ = 19200000.
The previous prime is 42687067. The next prime is 42687077. The reversal of 42687068 is 86078624.
42687068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×426870683 (a number of 24 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42687067) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169943 + ... + 170193.
It is an arithmetic number, because the mean of its divisors is an integer number (1722546).
Almost surely, 242687068 is an apocalyptic number.
It is an amenable number.
42687068 is a deficient number, since it is larger than the sum of its proper divisors (39995140).
42687068 is a wasteful number, since it uses less digits than its factorization.
42687068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 374 (or 372 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 41.
The square root of 42687068 is about 6533.5341125611. The cubic root of 42687068 is about 349.4878714145.
The spelling of 42687068 in words is "forty-two million, six hundred eighty-seven thousand, sixty-eight".
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