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12203130040 = 235305078251
BaseRepresentation
bin10110101110101110…
…01111110010111000
31011111110100020101021
423113113033302320
5144443000130130
65334523232224
7611255615413
oct132727176270
934443306337
1012203130040
1151a2392242
122446978674
1311c627670a
1483a9b6b7a
154b64e737a
hex2d75cfcb8

12203130040 has 16 divisors (see below), whose sum is σ = 27457042680. Its totient is φ = 4881252000.

The previous prime is 12203130011. The next prime is 12203130047. The reversal of 12203130040 is 4003130221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12203129996 and 12203130023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203130047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152539086 + ... + 152539165.

Almost surely, 212203130040 is an apocalyptic number.

12203130040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203130040 is an abundant number, since it is smaller than the sum of its proper divisors (15253912640).

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

12203130040 is a wasteful number, since it uses less digits than its factorization.

12203130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305078262 (or 305078258 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12203130040 its reverse (4003130221), we get a palindrome (16206260261).

The spelling of 12203130040 in words is "twelve billion, two hundred three million, one hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 305078251 610156502 1220313004 1525391255 2440626008 3050782510 6101565020 12203130040