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30740041 = 1031492003
BaseRepresentation
bin111010101000…
…0111001001001
32010211202102001
41311100321021
530332140131
63014511001
7522200053
oct165207111
963752361
1030740041
11163964a2
12a365461
1364a3a97
1441228d3
152a73261
hex1d50e49

30740041 has 8 divisors (see below), whose sum is σ = 31262400. Its totient is φ = 30222192.

The previous prime is 30740033. The next prime is 30740051. The reversal of 30740041 is 14004703.

It is a happy number.

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 30740041 - 23 = 30740033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30740011) 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, 14346 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (3907800).

Almost surely, 230740041 is an apocalyptic number.

It is an amenable number.

30740041 is a deficient number, since it is larger than the sum of its proper divisors (522359).

30740041 is a wasteful number, since it uses less digits than its factorization.

30740041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30740041 is about 5544.3702076972. The cubic root of 30740041 is about 313.2575022720.

Adding to 30740041 its reverse (14004703), we get a palindrome (44744744).

The spelling of 30740041 in words is "thirty million, seven hundred forty thousand, forty-one".

Divisors: 1 103 149 2003 15347 206309 298447 30740041