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30241273 = 197153509
BaseRepresentation
bin111001101011…
…1000111111001
32002220102020011
41303113013321
530220210043
63000101521
7515021656
oct163270771
962812204
1030241273
1116085797
12a1648a1
13635aa5a
144032c2d
1529c559d
hex1cd71f9

30241273 has 4 divisors (see below), whose sum is σ = 30394980. Its totient is φ = 30087568.

The previous prime is 30241271. The next prime is 30241291. The reversal of 30241273 is 37214203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22771984 + 7469289 = 4772^2 + 2733^2 .

It is a cyclic number.

It is not a de Polignac number, because 30241273 - 21 = 30241271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30241271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76558 + ... + 76951.

It is an arithmetic number, because the mean of its divisors is an integer number (7598745).

Almost surely, 230241273 is an apocalyptic number.

It is an amenable number.

30241273 is a deficient number, since it is larger than the sum of its proper divisors (153707).

30241273 is a wasteful number, since it uses less digits than its factorization.

30241273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153706.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30241273 is about 5499.2065791348. The cubic root of 30241273 is about 311.5540177726.

Adding to 30241273 its reverse (37214203), we get a palindrome (67455476).

The spelling of 30241273 in words is "thirty million, two hundred forty-one thousand, two hundred seventy-three".

Divisors: 1 197 153509 30241273