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12731743000 = 235312731743
BaseRepresentation
bin10111101101101111…
…01111101100011000
31012212022000120001001
423312313233230120
5202033311234000
65503205234344
7630335013154
oct136667575430
935768016031
1012731743000
115443811a59
122573a029b4
13127b939352
1488ac9a064
154e7b1346a
hex2f6defb18

12731743000 has 32 divisors (see below), whose sum is σ = 29792280960. Its totient is φ = 5092696800.

The previous prime is 12731742983. The next prime is 12731743001. The reversal of 12731743000 is 34713721.

It is a self number, because there is not a number n which added to its sum of digits gives 12731743000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731743001) 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, 6364872 + ... + 6366871.

It is an arithmetic number, because the mean of its divisors is an integer number (931008780).

Almost surely, 212731743000 is an apocalyptic number.

12731743000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12731743000 is an abundant number, since it is smaller than the sum of its proper divisors (17060537960).

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

12731743000 is a wasteful number, since it uses less digits than its factorization.

12731743000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731764 (or 12731750 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 12731743000 in words is "twelve billion, seven hundred thirty-one million, seven hundred forty-three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 12731743 25463486 50926972 63658715 101853944 127317430 254634860 318293575 509269720 636587150 1273174300 1591467875 2546348600 3182935750 6365871500 12731743000