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12452125450 = 252257969037
BaseRepresentation
bin10111001100011010…
…00101101100001010
31012010210212111212111
423212031011230022
5201000221003300
65415340132534
7620401214512
oct134615055412
935123774774
1012452125450
11530a99a176
1224b623714a
131235a26a8b
14861ab0842
154cd2cd9ba
hex2e6345b0a

12452125450 has 24 divisors (see below), whose sum is σ = 23251097772. Its totient is φ = 4961464320.

The previous prime is 12452125429. The next prime is 12452125451. The reversal of 12452125450 is 5452125421.

It can be written as a sum of positive squares in 6 ways, for example, as 7828533441 + 4623592009 = 88479^2 + 67997^2 .

It is not an unprimeable number, because it can be changed into a prime (12452125451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471669 + ... + 497368.

Almost surely, 212452125450 is an apocalyptic number.

12452125450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12452125450 is a deficient number, since it is larger than the sum of its proper divisors (10798972322).

12452125450 is a wasteful number, since it uses less digits than its factorization.

12452125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969306 (or 969301 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 12452125450 in words is "twelve billion, four hundred fifty-two million, one hundred twenty-five thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 257 514 1285 2570 6425 12850 969037 1938074 4845185 9690370 24225925 48451850 249042509 498085018 1245212545 2490425090 6226062725 12452125450