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12838494750 = 2353195389191
BaseRepresentation
bin10111111010011101…
…11110001000011110
31020010201220002220120
423331032332020132
5202243123313000
65521541255410
7633102255564
oct137516761036
936121802816
1012838494750
115498aa5144
1225a3704566
131297aa5073
1489b127a34
1550219d6a0
hex2fd3be21e

12838494750 has 256 divisors, whose sum is σ = 34936012800. Its totient is φ = 3129984000.

The previous prime is 12838494749. The next prime is 12838494763. The reversal of 12838494750 is 5749483821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12838494693 and 12838494702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67217155 + ... + 67217345.

It is an arithmetic number, because the mean of its divisors is an integer number (136468800).

Almost surely, 212838494750 is an apocalyptic number.

12838494750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12838494750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17468006400).

12838494750 is an abundant number, since it is smaller than the sum of its proper divisors (22097518050).

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

12838494750 is a wasteful number, since it uses less digits than its factorization.

12838494750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 12838494750 in words is "twelve billion, eight hundred thirty-eight million, four hundred ninety-four thousand, seven hundred fifty".