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12510137472 = 27373194999
BaseRepresentation
bin10111010011010100…
…11000110010000000
31012021212000211101220
423221222120302000
5201110043344342
65425211355040
7622004262000
oct135152306200
935255024356
1012510137472
11533a712498
122511752a80
131244a58c11
14869692000
154d343c5ec
hex2e9a98c80

12510137472 has 256 divisors, whose sum is σ = 40800000000. Its totient is φ = 3385525248.

The previous prime is 12510137467. The next prime is 12510137477. The reversal of 12510137472 is 27473101521.

It is an interprime number because it is at equal distance from previous prime (12510137467) and next prime (12510137477).

It is not an unprimeable number, because it can be changed into a prime (12510137477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2500029 + ... + 2505027.

It is an arithmetic number, because the mean of its divisors is an integer number (159375000).

Almost surely, 212510137472 is an apocalyptic number.

12510137472 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 12510137472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20400000000).

12510137472 is an abundant number, since it is smaller than the sum of its proper divisors (28289862528).

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

12510137472 is an equidigital number, since it uses as much as digits as its factorization.

12510137472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 12510137472 its reverse (27473101521), we get a palindrome (39983238993).

The spelling of 12510137472 in words is "twelve billion, five hundred ten million, one hundred thirty-seven thousand, four hundred seventy-two".