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12102010 = 257915319
BaseRepresentation
bin101110001010…
…100101111010
3211202211211121
4232022211322
511044231020
61111215454
7204602554
oct56124572
924684747
1012102010
116916468
12407758a
13267956b
1418704d4
1510e0baa
hexb8a97a

12102010 has 16 divisors (see below), whose sum is σ = 22060800. Its totient is φ = 4779216.

The previous prime is 12102001. The next prime is 12102017. The reversal of 12102010 is 1020121.

It is a junction number, because it is equal to n+sod(n) for n = 12101984 and 12102002.

It is not an unprimeable number, because it can be changed into a prime (12102017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6870 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (1378800).

Almost surely, 212102010 is an apocalyptic number.

12102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102010 is a deficient number, since it is larger than the sum of its proper divisors (9958790).

12102010 is a wasteful number, since it uses less digits than its factorization.

12102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15405.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 12102010 is about 3478.7943313740. The cubic root of 12102010 is about 229.5897538800.

Adding to 12102010 its reverse (1020121), we get a palindrome (13122131).

The spelling of 12102010 in words is "twelve million, one hundred two thousand, ten".

Divisors: 1 2 5 10 79 158 395 790 15319 30638 76595 153190 1210201 2420402 6051005 12102010