Search a number
-
+
305212014 = 23216956223
BaseRepresentation
bin10010001100010…
…010101001101110
3210021022101011200
4102030102221232
51111113241024
650141430330
710364154642
oct2214225156
9707271150
10305212014
11147314338
128626b3a6
134b304233
142c76cc22
151bbdd2c9
hex12312a6e

305212014 has 12 divisors (see below), whose sum is σ = 661292736. Its totient is φ = 101737332.

The previous prime is 305212013. The next prime is 305212021. The reversal of 305212014 is 410212503.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 16956223 = 305212014 / (3 + 0 + 5 + 2 + 1 + 2 + 0 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305212013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8478094 + ... + 8478129.

It is an arithmetic number, because the mean of its divisors is an integer number (55107728).

Almost surely, 2305212014 is an apocalyptic number.

305212014 is an abundant number, since it is smaller than the sum of its proper divisors (356080722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305212014 is a wasteful number, since it uses less digits than its factorization.

305212014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16956231 (or 16956228 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 305212014 is about 17470.3180852553. The cubic root of 305212014 is about 673.2874844338.

Adding to 305212014 its reverse (410212503), we get a palindrome (715424517).

The spelling of 305212014 in words is "three hundred five million, two hundred twelve thousand, fourteen".

Divisors: 1 2 3 6 9 18 16956223 33912446 50868669 101737338 152606007 305212014