Base | Representation |
---|---|
bin | 1000010111001… |
… | …00011001011011 |
3 | 11212222120002111 |
4 | 10023210121123 |
5 | 120424012111 |
6 | 10543213151 |
7 | 1511123155 |
oct | 413443133 |
9 | 155876074 |
10 | 70141531 |
11 | 36658409 |
12 | 1b5a71b7 |
13 | 116bb085 |
14 | 945bad5 |
15 | 6257a21 |
hex | 42e465b |
70141531 has 8 divisors (see below), whose sum is σ = 71843904. Its totient is φ = 68448000.
The previous prime is 70141469. The next prime is 70141549. The reversal of 70141531 is 13514107.
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 70141531 - 27 = 70141403 is a prime.
It is a super-2 number, since 2×701415312 = 9839668742047922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70141231) 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 7 ways as a sum of consecutive naturals, for example, 15531 + ... + 19531.
It is an arithmetic number, because the mean of its divisors is an integer number (8980488).
Almost surely, 270141531 is an apocalyptic number.
70141531 is a deficient number, since it is larger than the sum of its proper divisors (1702373).
70141531 is a wasteful number, since it uses less digits than its factorization.
70141531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4421.
The product of its (nonzero) digits is 420, while the sum is 22.
The square root of 70141531 is about 8375.0540893776. The cubic root of 70141531 is about 412.4060999611.
Adding to 70141531 its reverse (13514107), we get a palindrome (83655638).
The spelling of 70141531 in words is "seventy million, one hundred forty-one thousand, five hundred thirty-one".
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