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305413042 = 21115788423
BaseRepresentation
bin10010001101000…
…011101110110010
3210021200120221011
4102031003232302
51111141204132
650150021134
710365653014
oct2215035662
9707616834
10305413042
11147441380
12863477aa
134b37489c
142c7c21b4
151bc2cb47
hex12343bb2

305413042 has 16 divisors (see below), whose sum is σ = 502955712. Its totient is φ = 137938320.

The previous prime is 305413039. The next prime is 305413057. The reversal of 305413042 is 240314503.

305413042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40758 + ... + 47665.

It is an arithmetic number, because the mean of its divisors is an integer number (31434732).

Almost surely, 2305413042 is an apocalyptic number.

305413042 is a deficient number, since it is larger than the sum of its proper divisors (197542670).

305413042 is a wasteful number, since it uses less digits than its factorization.

305413042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88593.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 305413042 is about 17476.0705537601. The cubic root of 305413042 is about 673.4352723376.

Adding to 305413042 its reverse (240314503), we get a palindrome (545727545).

The spelling of 305413042 in words is "three hundred five million, four hundred thirteen thousand, forty-two".

Divisors: 1 2 11 22 157 314 1727 3454 88423 176846 972653 1945306 13882411 27764822 152706521 305413042