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12040220230 = 255051238373
BaseRepresentation
bin10110011011010011…
…10010111001000110
31011002002210120010121
423031221302321012
5144124244021410
65310423412154
7604240116613
oct131551627106
934062716117
1012040220230
115119432735
1224002b405a
13119b5a768c
148230cb50a
154a70679da
hex2cda72e46

12040220230 has 16 divisors (see below), whose sum is σ = 21676778064. Its totient is φ = 4815114400.

The previous prime is 12040220191. The next prime is 12040220239. The reversal of 12040220230 is 3202204021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040220239) 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, 68677 + ... + 169696.

It is an arithmetic number, because the mean of its divisors is an integer number (1354798629).

Almost surely, 212040220230 is an apocalyptic number.

12040220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12040220230 is a deficient number, since it is larger than the sum of its proper divisors (9636557834).

12040220230 is a wasteful number, since it uses less digits than its factorization.

12040220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243431.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12040220230 its reverse (3202204021), we get a palindrome (15242424251).

The spelling of 12040220230 in words is "twelve billion, forty million, two hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 5051 10102 25255 50510 238373 476746 1191865 2383730 1204022023 2408044046 6020110115 12040220230