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12890210 = 252944449
BaseRepresentation
bin110001001011…
…000001100010
3220020220001012
4301023001202
511244441320
61140140522
7214364534
oct61130142
926226035
1012890210
117304673
124397742
132894258
1419d7854
1511e94c5
hexc4b062

12890210 has 16 divisors (see below), whose sum is σ = 24003000. Its totient is φ = 4978176.

The previous prime is 12890209. The next prime is 12890219. The reversal of 12890210 is 1209821.

It can be written as a sum of positive squares in 4 ways, for example, as 12103441 + 786769 = 3479^2 + 887^2 .

It is not an unprimeable number, because it can be changed into a prime (12890219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21935 + ... + 22514.

Almost surely, 212890210 is an apocalyptic number.

12890210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12890210 is a deficient number, since it is larger than the sum of its proper divisors (11112790).

12890210 is a wasteful number, since it uses less digits than its factorization.

12890210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44485.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12890210 is about 3590.2938598393. The cubic root of 12890210 is about 234.4696656995.

The spelling of 12890210 in words is "twelve million, eight hundred ninety thousand, two hundred ten".

Divisors: 1 2 5 10 29 58 145 290 44449 88898 222245 444490 1289021 2578042 6445105 12890210