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13481002 = 26740501
BaseRepresentation
bin110011011011…
…010000101010
3221100220110101
4303123100222
511422343002
61200540014
7222405133
oct63332052
927326411
1013481002
117678527
12462160a
132a40132
141b0cc8a
1512b4587
hexcdb42a

13481002 has 4 divisors (see below), whose sum is σ = 20221506. Its totient is φ = 6740500.

The previous prime is 13480997. The next prime is 13481021. The reversal of 13481002 is 20018431.

13481002 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, and also an emirpimes, since its reverse is a distinct semiprime: 20018431 = 61328171.

It can be written as a sum of positive squares in only one way, i.e., 13476241 + 4761 = 3671^2 + 69^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370249 + ... + 3370252.

Almost surely, 213481002 is an apocalyptic number.

13481002 is a deficient number, since it is larger than the sum of its proper divisors (6740504).

13481002 is an equidigital number, since it uses as much as digits as its factorization.

13481002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740503.

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

The square root of 13481002 is about 3671.6484036465. The cubic root of 13481002 is about 237.9984111186.

Adding to 13481002 its reverse (20018431), we get a palindrome (33499433).

The spelling of 13481002 in words is "thirteen million, four hundred eighty-one thousand, two".

Divisors: 1 2 6740501 13481002