Search a number
-
+
30287589041 = 135372237393
BaseRepresentation
bin11100001101010001…
…111110111010110001
32220011210102221101002
4130031101332322301
5444012110322131
621525224051345
72121361154603
oct341521767261
986153387332
1030287589041
1111932610a26
125a53303b55
132b18b38b28
14167470b173
15bc3ed56cb
hex70d47eeb1

30287589041 has 4 divisors (see below), whose sum is σ = 30289839972. Its totient is φ = 30285338112.

The previous prime is 30287588987. The next prime is 30287589043. The reversal of 30287589041 is 14098578203.

It is a happy number.

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 28124967025 + 2162622016 = 167705^2 + 46504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30287589041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30287589043) 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, 1105160 + ... + 1132233.

It is an arithmetic number, because the mean of its divisors is an integer number (7572459993).

Almost surely, 230287589041 is an apocalyptic number.

It is an amenable number.

30287589041 is a deficient number, since it is larger than the sum of its proper divisors (2250931).

30287589041 is a wasteful number, since it uses less digits than its factorization.

30287589041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250930.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 30287589041 in words is "thirty billion, two hundred eighty-seven million, five hundred eighty-nine thousand, forty-one".

Divisors: 1 13537 2237393 30287589041