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12983715492 = 223113153131457
BaseRepresentation
bin11000001011110001…
…11100011010100100
31020111212011002022120
430011320330122210
5203042312343432
65544210025540
7636514521636
oct140570743244
936455132276
1012983715492
115562a72690
1226242782b0
1312bbbbc7b7
148b252aa56
1550ecd6c2c
hex305e3c6a4

12983715492 has 192 divisors, whose sum is σ = 35101237248. Its totient is φ = 3699072000.

The previous prime is 12983715347. The next prime is 12983715497. The reversal of 12983715492 is 29451738921.

It is not an unprimeable number, because it can be changed into a prime (12983715497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28410528 + ... + 28410984.

It is an arithmetic number, because the mean of its divisors is an integer number (182818944).

Almost surely, 212983715492 is an apocalyptic number.

12983715492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12983715492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17550618624).

12983715492 is an abundant number, since it is smaller than the sum of its proper divisors (22117521756).

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

12983715492 is a wasteful number, since it uses less digits than its factorization.

12983715492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 12983715492 in words is "twelve billion, nine hundred eighty-three million, seven hundred fifteen thousand, four hundred ninety-two".