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13120122 = 232975403
BaseRepresentation
bin110010000011…
…001001111010
3220200120102110
4302003021322
511324320442
61145113150
7216343041
oct62031172
926616373
1013120122
117451384
1244887b6
132944ab2
141a57558
15124269c
hexc8327a

13120122 has 16 divisors (see below), whose sum is σ = 27145440. Its totient is φ = 4222512.

The previous prime is 13120111. The next prime is 13120139. The reversal of 13120122 is 22102131.

It is a junction number, because it is equal to n+sod(n) for n = 13120098 and 13120107.

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 7 ways as a sum of consecutive naturals, for example, 37528 + ... + 37875.

It is an arithmetic number, because the mean of its divisors is an integer number (1696590).

Almost surely, 213120122 is an apocalyptic number.

13120122 is an abundant number, since it is smaller than the sum of its proper divisors (14025318).

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

13120122 is a wasteful number, since it uses less digits than its factorization.

13120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75437.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13120122 is about 3622.1708960235. The cubic root of 13120122 is about 235.8554726504.

Adding to 13120122 its reverse (22102131), we get a palindrome (35222253).

Subtracting 13120122 from its reverse (22102131), we obtain a square (8982009 = 29972).

The spelling of 13120122 in words is "thirteen million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 29 58 87 174 75403 150806 226209 452418 2186687 4373374 6560061 13120122