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13405001 is a prime number
BaseRepresentation
bin110011001000…
…101101001001
3221020001012112
4303020231021
511412430001
61155152105
7221640431
oct63105511
927201175
1013405001
117626415
1245a5635
132a1466c
141acd2c1
15129bcbb
hexcc8b49

13405001 has 2 divisors, whose sum is σ = 13405002. Its totient is φ = 13405000.

The previous prime is 13404983. The next prime is 13405003. The reversal of 13405001 is 10050431.

13405001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9703225 + 3701776 = 3115^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 13405001 - 222 = 9210697 is a prime.

Together with 13405003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13405003) 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, 6702500 + 6702501.

It is an arithmetic number, because the mean of its divisors is an integer number (6702501).

Almost surely, 213405001 is an apocalyptic number.

It is an amenable number.

13405001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405001 is an equidigital number, since it uses as much as digits as its factorization.

13405001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13405001 is about 3661.2840643687. The cubic root of 13405001 is about 237.5503184243.

Adding to 13405001 its reverse (10050431), we get a palindrome (23455432).

The spelling of 13405001 in words is "thirteen million, four hundred five thousand, one".