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11820130 = 2571311289
BaseRepresentation
bin101101000101…
…110001100010
3211020112011121
4231011301202
511011221010
61101202454
7202320010
oct55056142
924215147
1011820130
116743703
123b6042a
1325ab17a
1417d98b0
1510873da
hexb45c62

11820130 has 32 divisors (see below), whose sum is σ = 24520320. Its totient is φ = 4018560.

The previous prime is 11820121. The next prime is 11820161. The reversal of 11820130 is 3102811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8526 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (766260).

Almost surely, 211820130 is an apocalyptic number.

11820130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11820130 is an abundant number, since it is smaller than the sum of its proper divisors (12700190).

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

11820130 is a wasteful number, since it uses less digits than its factorization.

11820130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11820130 is about 3438.0415936984. The cubic root of 11820130 is about 227.7931976253.

Adding to 11820130 its reverse (3102811), we get a palindrome (14922941).

The spelling of 11820130 in words is "eleven million, eight hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 131 262 655 917 1289 1310 1834 2578 4585 6445 9023 9170 12890 18046 45115 90230 168859 337718 844295 1182013 1688590 2364026 5910065 11820130