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513111140 = 225232294871
BaseRepresentation
bin11110100101010…
…111010001100100
31022202111202011022
4132211113101210
52022324024030
6122525430312
715500241563
oct3645272144
91282452138
10513111140
11243701aa3
12123a0b398
13823c5a79
144c209bda
15300a7de5
hex1e957464

513111140 has 48 divisors (see below), whose sum is σ = 1129524480. Its totient is φ = 195423360.

The previous prime is 513111121. The next prime is 513111143. The reversal of 513111140 is 41111315.

It is not an unprimeable number, because it can be changed into a prime (513111143) 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, 102905 + ... + 107775.

It is an arithmetic number, because the mean of its divisors is an integer number (23531760).

Almost surely, 2513111140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513111140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564762240).

513111140 is an abundant number, since it is smaller than the sum of its proper divisors (616413340).

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

513111140 is a wasteful number, since it uses less digits than its factorization.

513111140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 5130 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 513111140 is about 22651.9566483781. The cubic root of 513111140 is about 800.5783006098.

Adding to 513111140 its reverse (41111315), we get a palindrome (554222455).

The spelling of 513111140 in words is "five hundred thirteen million, one hundred eleven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 229 230 458 460 916 1145 2290 4580 4871 5267 9742 10534 19484 21068 24355 26335 48710 52670 97420 105340 112033 224066 448132 560165 1115459 1120330 2230918 2240660 4461836 5577295 11154590 22309180 25655557 51311114 102622228 128277785 256555570 513111140