Base | Representation |
---|---|
bin | 1110010101101… |
… | …1001111000011 |
3 | 11012011120001011 |
4 | 3211123033003 |
5 | 110344030111 |
6 | 5545021351 |
7 | 1330126441 |
oct | 345331703 |
9 | 135146034 |
10 | 60142531 |
11 | 30a48a79 |
12 | 18184857 |
13 | c5c9ac7 |
14 | 7db7b91 |
15 | 5430021 |
hex | 395b3c3 |
60142531 has 8 divisors (see below), whose sum is σ = 61714800. Its totient is φ = 58575360.
The previous prime is 60142513. The next prime is 60142553. The reversal of 60142531 is 13524106.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 60142531 - 27 = 60142403 is a prime.
It is a super-2 number, since 2×601425312 = 7234248070171922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (60145531) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37300 + ... + 38878.
It is an arithmetic number, because the mean of its divisors is an integer number (7714350).
Almost surely, 260142531 is an apocalyptic number.
60142531 is a deficient number, since it is larger than the sum of its proper divisors (1572269).
60142531 is a wasteful number, since it uses less digits than its factorization.
60142531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2549.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 60142531 is about 7755.1615714955. The cubic root of 60142531 is about 391.7965134190.
Adding to 60142531 its reverse (13524106), we get a palindrome (73666637).
The spelling of 60142531 in words is "sixty million, one hundred forty-two thousand, five hundred thirty-one".
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