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12852990 = 2325142811
BaseRepresentation
bin110001000001…
…111011111110
3220011222222200
4301001323332
511242243430
61135252330
7214151163
oct61017376
926158880
1012852990
117289707
12437a0a6
132880327
1419c806a
1511dd460
hexc41efe

12852990 has 24 divisors (see below), whose sum is σ = 33418008. Its totient is φ = 3427440.

The previous prime is 12852971. The next prime is 12852997. The reversal of 12852990 is 9925821.

12852990 is a `hidden beast` number, since 128 + 529 + 9 + 0 = 666.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12852997) 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, 71316 + ... + 71495.

It is an arithmetic number, because the mean of its divisors is an integer number (1392417).

Almost surely, 212852990 is an apocalyptic number.

12852990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12852990 is an abundant number, since it is smaller than the sum of its proper divisors (20565018).

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

12852990 is a wasteful number, since it uses less digits than its factorization.

12852990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142824 (or 142821 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12852990 is about 3585.1066929730. The cubic root of 12852990 is about 234.2437740073.

The spelling of 12852990 in words is "twelve million, eight hundred fifty-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 142811 285622 428433 714055 856866 1285299 1428110 2142165 2570598 4284330 6426495 12852990