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13140222 = 232395219
BaseRepresentation
bin110010001000…
…000011111110
3220201120222220
4302020003332
511330441342
61145350210
7216455454
oct62100376
926646886
1013140222
117465497
124498366
132950ca4
141a609d4
1512485ec
hexc880fe

13140222 has 16 divisors (see below), whose sum is σ = 27423360. Its totient is φ = 4189592.

The previous prime is 13140221. The next prime is 13140271. The reversal of 13140222 is 22204131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140221) by changing a digit.

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, 47472 + ... + 47747.

It is an arithmetic number, because the mean of its divisors is an integer number (1713960).

Almost surely, 213140222 is an apocalyptic number.

13140222 is an abundant number, since it is smaller than the sum of its proper divisors (14283138).

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

13140222 is a wasteful number, since it uses less digits than its factorization.

13140222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95247.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13140222 is about 3624.9444133669. The cubic root of 13140222 is about 235.9758545632.

Adding to 13140222 its reverse (22204131), we get a palindrome (35344353).

The spelling of 13140222 in words is "thirteen million, one hundred forty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 23 46 69 138 95219 190438 285657 571314 2190037 4380074 6570111 13140222