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13122130 = 2571711027
BaseRepresentation
bin110010000011…
…101001010010
3220200200011211
4302003221102
511324402010
61145130334
7216351640
oct62035122
926620154
1013122130
11745293a
1244899aa
132945998
141a58190
15124308a
hexc83a52

13122130 has 32 divisors (see below), whose sum is σ = 28584576. Its totient is φ = 4233984.

The previous prime is 13122127. The next prime is 13122133. The reversal of 13122130 is 3122131.

It is an interprime number because it is at equal distance from previous prime (13122127) and next prime (13122133).

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 13122130.

It is not an unprimeable number, because it can be changed into a prime (13122133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4324 + ... + 6703.

It is an arithmetic number, because the mean of its divisors is an integer number (893268).

Almost surely, 213122130 is an apocalyptic number.

13122130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122130 is an abundant number, since it is smaller than the sum of its proper divisors (15462446).

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

13122130 is a wasteful number, since it uses less digits than its factorization.

13122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11058.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13122130 is about 3622.4480672606. The cubic root of 13122130 is about 235.8675043889.

Adding to 13122130 its reverse (3122131), we get a palindrome (16244261).

Subtracting from 13122130 its reverse (3122131), we obtain a palindrome (9999999).

The spelling of 13122130 in words is "thirteen million, one hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 11027 22054 55135 77189 110270 154378 187459 374918 385945 771890 937295 1312213 1874590 2624426 6561065 13122130