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306269041 = 1323559157
BaseRepresentation
bin10010010000010…
…100101101110001
3210100022002010211
4102100110231301
51111401102131
650220224121
710406146441
oct2220245561
9710262124
10306269041
11147976511
128669b041
134b5b43b0
142c966121
151bd4b5b1
hex12414b71

306269041 has 4 divisors (see below), whose sum is σ = 329828212. Its totient is φ = 282709872.

The previous prime is 306269039. The next prime is 306269063. The reversal of 306269041 is 140962603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140962603 = 330142703.

It can be written as a sum of positive squares in 2 ways, for example, as 90326016 + 215943025 = 9504^2 + 14695^2 .

It is a cyclic number.

It is not a de Polignac number, because 306269041 - 21 = 306269039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306268994 and 306269012.

It is not an unprimeable number, because it can be changed into a prime (306269021) 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, 11779566 + ... + 11779591.

It is an arithmetic number, because the mean of its divisors is an integer number (82457053).

Almost surely, 2306269041 is an apocalyptic number.

It is an amenable number.

306269041 is a deficient number, since it is larger than the sum of its proper divisors (23559171).

306269041 is a wasteful number, since it uses less digits than its factorization.

306269041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23559170.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 306269041 is about 17500.5440201155. The cubic root of 306269041 is about 674.0638442693.

The spelling of 306269041 in words is "three hundred six million, two hundred sixty-nine thousand, forty-one".

Divisors: 1 13 23559157 306269041