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13802122 = 26901061
BaseRepresentation
bin110100101001…
…101010001010
3221222012221201
4310221222022
512013131442
61211454414
7225213265
oct64515212
927865851
1013802122
117877814
12475740a
132b23349
141b93cdc
1513297b7
hexd29a8a

13802122 has 4 divisors (see below), whose sum is σ = 20703186. Its totient is φ = 6901060.

The previous prime is 13802083. The next prime is 13802123. The reversal of 13802122 is 22120831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22120831 = 71311561.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 4748041 = 3009^2 + 2179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13802122.

It is not an unprimeable number, because it can be changed into a prime (13802123) 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 as a sum of consecutive naturals, namely, 3450529 + ... + 3450532.

Almost surely, 213802122 is an apocalyptic number.

13802122 is a deficient number, since it is larger than the sum of its proper divisors (6901064).

13802122 is an equidigital number, since it uses as much as digits as its factorization.

13802122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901063.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13802122 is about 3715.1207248217. The cubic root of 13802122 is about 239.8733243541.

Adding to 13802122 its reverse (22120831), we get a palindrome (35922953).

It can be divided in two parts, 13802 and 122, that added together give a square (13924 = 1182).

The spelling of 13802122 in words is "thirteen million, eight hundred two thousand, one hundred twenty-two".

Divisors: 1 2 6901061 13802122