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30541501241 = 101330149557
BaseRepresentation
bin11100011100011010…
…100101001100111001
32220211111020000102122
4130130122211030321
51000022111014431
622010334211025
72130563322446
oct343432451471
986744200378
1030541501241
1111a52976a19
125b04353a75
132b5961b134
14169a3249cd
15bdb43da7b
hex71c6a5339

30541501241 has 4 divisors (see below), whose sum is σ = 30571651812. Its totient is φ = 30511350672.

The previous prime is 30541501141. The next prime is 30541501267. The reversal of 30541501241 is 14210514503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14210514503 = 119027119389.

It can be written as a sum of positive squares in 2 ways, for example, as 14664241216 + 15877260025 = 121096^2 + 126005^2 .

It is a cyclic number.

It is not a de Polignac number, because 30541501241 - 218 = 30541239097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30541501241.

It is not an unprimeable number, because it can be changed into a prime (30541501271) 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, 15073766 + ... + 15075791.

It is an arithmetic number, because the mean of its divisors is an integer number (7642912953).

Almost surely, 230541501241 is an apocalyptic number.

It is an amenable number.

30541501241 is a deficient number, since it is larger than the sum of its proper divisors (30150571).

30541501241 is a wasteful number, since it uses less digits than its factorization.

30541501241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30150570.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 30541501241 in words is "thirty billion, five hundred forty-one million, five hundred one thousand, two hundred forty-one".

Divisors: 1 1013 30149557 30541501241