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12142203100 = 2252121422031
BaseRepresentation
bin10110100111011101…
…10101000011011100
31011100012200211022221
423103232311003130
5144331400444400
65324505315124
7606616011016
oct132356650334
934305624287
1012142203100
115170a589a5
12242a495aa4
1311b6763881
148328771b6
154b0eaec1a
hex2d3bb50dc

12142203100 has 18 divisors (see below), whose sum is σ = 26348580944. Its totient is φ = 4856881200.

The previous prime is 12142203019. The next prime is 12142203107. The reversal of 12142203100 is 130224121.

It is a super-2 number, since 2×121422031002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142203107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60710916 + ... + 60711115.

Almost surely, 212142203100 is an apocalyptic number.

12142203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12142203100 is an abundant number, since it is smaller than the sum of its proper divisors (14206377844).

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

12142203100 is a wasteful number, since it uses less digits than its factorization.

12142203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121422045 (or 121422038 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12142203100 its reverse (130224121), we get a palindrome (12272427221).

The spelling of 12142203100 in words is "twelve billion, one hundred forty-two million, two hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 121422031 242844062 485688124 607110155 1214220310 2428440620 3035550775 6071101550 12142203100