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20000111230 = 2511181819193
BaseRepresentation
bin10010101000000110…
…010111101001111110
31220121211201220211101
4102220012113221332
5311430012024410
613104331443314
71305423066121
oct225006275176
956554656741
1020000111230
1185335a5650
123a61bb653a
131b69716458
14d7a3143b8
157c0c8dd3a
hex4a8197a7e

20000111230 has 16 divisors (see below), whose sum is σ = 39272945904. Its totient is φ = 7272767680.

The previous prime is 20000111221. The next prime is 20000111237. The reversal of 20000111230 is 3211100002.

It is a super-2 number, since 2×200001112302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000111237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90909487 + ... + 90909706.

It is an arithmetic number, because the mean of its divisors is an integer number (2454559119).

Almost surely, 220000111230 is an apocalyptic number.

20000111230 is a deficient number, since it is larger than the sum of its proper divisors (19272834674).

20000111230 is a wasteful number, since it uses less digits than its factorization.

20000111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819211.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20000111230 its reverse (3211100002), we get a palindrome (23211211232).

The spelling of 20000111230 in words is "twenty billion, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 181819193 363638386 909095965 1818191930 2000011123 4000022246 10000055615 20000111230