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12425944250 = 253457108761
BaseRepresentation
bin10111001001010010…
…01101110010111010
31012001222121101000102
423210221031302322
5200422020204000
65413003035402
7616632532466
oct134451156272
935058541012
1012425944250
1152a7137915
1224a950bb62
13123048b045
1485c4174a6
154cad5b3d5
hex2e4a4dcba

12425944250 has 32 divisors (see below), whose sum is σ = 23312482128. Its totient is φ = 4959456000.

The previous prime is 12425944243. The next prime is 12425944277. The reversal of 12425944250 is 5244952421.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4035933841 + 8390010409 = 63529^2 + 91597^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59870 + ... + 168630.

Almost surely, 212425944250 is an apocalyptic number.

12425944250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12425944250 is a deficient number, since it is larger than the sum of its proper divisors (10886537878).

12425944250 is a wasteful number, since it uses less digits than its factorization.

12425944250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109235 (or 109225 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 12425944250 in words is "twelve billion, four hundred twenty-five million, nine hundred forty-four thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 457 914 2285 4570 11425 22850 57125 108761 114250 217522 543805 1087610 2719025 5438050 13595125 27190250 49703777 99407554 248518885 497037770 1242594425 2485188850 6212972125 12425944250