Base | Representation |
---|---|
bin | 1111011111111… |
… | …0111000100110 |
3 | 11112022201000221 |
4 | 3313332320212 |
5 | 113120212032 |
6 | 10241154554 |
7 | 1416360124 |
oct | 367767046 |
9 | 145281027 |
10 | 65007142 |
11 | 33770912 |
12 | 1992ba5a |
13 | 10611085 |
14 | 88c2914 |
15 | 5a91597 |
hex | 3dfee26 |
65007142 has 12 divisors (see below), whose sum is σ = 99836820. Its totient is φ = 31745868.
The previous prime is 65007139. The next prime is 65007143. The reversal of 65007142 is 24170056.
It is a super-2 number, since 2×650071422 = 8451857022016328, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65007143) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5092 + ... + 12487.
It is an arithmetic number, because the mean of its divisors is an integer number (8319735).
Almost surely, 265007142 is an apocalyptic number.
65007142 is a deficient number, since it is larger than the sum of its proper divisors (34829678).
65007142 is a wasteful number, since it uses less digits than its factorization.
65007142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17667 (or 17624 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 25.
The square root of 65007142 is about 8062.7006641695. The cubic root of 65007142 is about 402.0873014854.
Adding to 65007142 its reverse (24170056), we get a palindrome (89177198).
The spelling of 65007142 in words is "sixty-five million, seven thousand, one hundred forty-two".
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