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13402 = 26701
BaseRepresentation
bin11010001011010
3200101101
43101122
5412102
6142014
754034
oct32132
920341
1013402
11a084
12790a
13613c
144c54
153e87
hex345a

13402 has 4 divisors (see below), whose sum is σ = 20106. Its totient is φ = 6700.

The previous prime is 13399. The next prime is 13411. The reversal of 13402 is 20431.

13402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11881 + 1521 = 109^2 + 39^2 .

It is a super-2 number, since 2×134022 = 359227208, which contains 22 as substring.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349 + ... + 3352.

213402 is an apocalyptic number.

13402 is a deficient number, since it is larger than the sum of its proper divisors (6704).

13402 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 13402 = (20341)9.

13402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 13402 is about 115.7670073898. The cubic root of 13402 is about 23.7532590172.

Adding to 13402 its reverse (20431), we get a palindrome (33833).

It can be divided in two parts, 1 and 3402, that added together give a triangular number (3403 = T82).

The spelling of 13402 in words is "thirteen thousand, four hundred two".

Divisors: 1 2 6701 13402