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511223034 = 23712171977
BaseRepresentation
bin11110011110001…
…010010011111010
31022121221211011110
4132132022103322
52021333114114
6122421141150
715445216110
oct3636122372
91277854143
10511223034
11242632483
1212325a7b6
1381bb454a
144bc77ab0
152ed33759
hex1e78a4fa

511223034 has 16 divisors (see below), whose sum is σ = 1168509888. Its totient is φ = 146063712.

The previous prime is 511223021. The next prime is 511223039. The reversal of 511223034 is 430322115.

It is a super-2 number, since 2×5112230342 = 522697980984330312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 511223034.

It is not an unprimeable number, because it can be changed into a prime (511223039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6085947 + ... + 6086030.

It is an arithmetic number, because the mean of its divisors is an integer number (73031868).

Almost surely, 2511223034 is an apocalyptic number.

511223034 is an abundant number, since it is smaller than the sum of its proper divisors (657286854).

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

511223034 is a wasteful number, since it uses less digits than its factorization.

511223034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12171989.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 511223034 is about 22610.2417943727. The cubic root of 511223034 is about 799.5951253385.

Adding to 511223034 its reverse (430322115), we get a palindrome (941545149).

The spelling of 511223034 in words is "five hundred eleven million, two hundred twenty-three thousand, thirty-four".

Divisors: 1 2 3 6 7 14 21 42 12171977 24343954 36515931 73031862 85203839 170407678 255611517 511223034