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12996450 = 234523209
BaseRepresentation
bin110001100100…
…111101100010
3220110021210000
4301210331202
511311341300
61142320430
7215316345
oct61447542
926407700
1012996450
117377475
124429116
13290070c
141a2445c
15121ac00
hexc64f62

12996450 has 60 divisors (see below), whose sum is σ = 36122130. Its totient is φ = 3464640.

The previous prime is 12996433. The next prime is 12996457. The reversal of 12996450 is 5469921.

12996450 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 645 + 0 = 666.

12996450 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9979281 + 3017169 = 3159^2 + 1737^2 .

It is not an unprimeable number, because it can be changed into a prime (12996457) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2446 + ... + 5654.

Almost surely, 212996450 is an apocalyptic number.

12996450 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 12996450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18061065).

12996450 is an abundant number, since it is smaller than the sum of its proper divisors (23125680).

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

12996450 is a wasteful number, since it uses less digits than its factorization.

12996450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233 (or 3219 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 12996450 is about 3605.0589454266. The cubic root of 12996450 is about 235.1120636488.

The spelling of 12996450 in words is "twelve million, nine hundred ninety-six thousand, four hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1350 2025 3209 4050 6418 9627 16045 19254 28881 32090 48135 57762 80225 86643 96270 144405 160450 173286 240675 259929 288810 433215 481350 519858 722025 866430 1299645 1444050 2166075 2599290 4332150 6498225 12996450