Base | Representation |
---|---|
bin | 111010001001… |
… | …1111110101101 |
3 | 2010101002011022 |
4 | 1310103332231 |
5 | 30301144131 |
6 | 3005303525 |
7 | 520110464 |
oct | 164237655 |
9 | 63332138 |
10 | 30490541 |
11 | 16235aa4 |
12 | a264ba5 |
13 | 6417353 |
14 | 40999db |
15 | 2a2437b |
hex | 1d13fad |
30490541 has 8 divisors (see below), whose sum is σ = 30858240. Its totient is φ = 30125088.
The previous prime is 30490519. The next prime is 30490547. The reversal of 30490541 is 14509403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30490541 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30490541.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30490547) 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, 51650 + ... + 52236.
It is an arithmetic number, because the mean of its divisors is an integer number (3857280).
Almost surely, 230490541 is an apocalyptic number.
It is an amenable number.
30490541 is a deficient number, since it is larger than the sum of its proper divisors (367699).
30490541 is a wasteful number, since it uses less digits than its factorization.
30490541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1123.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 30490541 is about 5521.8240645642. The cubic root of 30490541 is about 312.4076860127.
Adding to 30490541 its reverse (14509403), we get a palindrome (44999944).
The spelling of 30490541 in words is "thirty million, four hundred ninety thousand, five hundred forty-one".
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