Base | Representation |
---|---|
bin | 11010110100100101100110 |
3 | 111020012220200 |
4 | 122310211212 |
5 | 3244444032 |
6 | 410411330 |
7 | 113522646 |
oct | 32644546 |
9 | 14205820 |
10 | 7031142 |
11 | 3a72668 |
12 | 2430b46 |
13 | 15c2451 |
14 | d10526 |
15 | 93d47c |
hex | 6b4966 |
7031142 has 24 divisors (see below), whose sum is σ = 15395016. Its totient is φ = 2318976.
The previous prime is 7031113. The next prime is 7031173. The reversal of 7031142 is 2411307.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 3759.
It is an arithmetic number, because the mean of its divisors is an integer number (641459).
Almost surely, 27031142 is an apocalyptic number.
7031142 is an abundant number, since it is smaller than the sum of its proper divisors (8363874).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7031142 is a wasteful number, since it uses less digits than its factorization.
7031142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4132 (or 4129 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 7031142 is about 2651.6300646961. The cubic root of 7031142 is about 191.5763772173.
Adding to 7031142 its reverse (2411307), we get a palindrome (9442449).
The spelling of 7031142 in words is "seven million, thirty-one thousand, one hundred forty-two".
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