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305234061 = 31113170607
BaseRepresentation
bin10010001100011…
…000000010001101
3210021100111102020
4102030120002031
51111114442221
650142120353
710364306136
oct2214300215
9707314366
10305234061
11147329960
12862800b9
134b311292
142c776c8d
151bbe4ac6
hex1231808d

305234061 has 16 divisors (see below), whose sum is σ = 447372288. Its totient is φ = 183575600.

The previous prime is 305234047. The next prime is 305234063. The reversal of 305234061 is 160432503.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 305234061 - 29 = 305233549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305234063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30981 + ... + 39626.

It is an arithmetic number, because the mean of its divisors is an integer number (27960768).

Almost surely, 2305234061 is an apocalyptic number.

It is an amenable number.

305234061 is a deficient number, since it is larger than the sum of its proper divisors (142138227).

305234061 is a wasteful number, since it uses less digits than its factorization.

305234061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70752.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 305234061 is about 17470.9490583654. The cubic root of 305234061 is about 673.3036956914.

Adding to 305234061 its reverse (160432503), we get a palindrome (465666564).

The spelling of 305234061 in words is "three hundred five million, two hundred thirty-four thousand, sixty-one".

Divisors: 1 3 11 33 131 393 1441 4323 70607 211821 776677 2330031 9249517 27748551 101744687 305234061