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14001553 = 31451663
BaseRepresentation
bin110101011010…
…010110010001
3222100100112001
4311122112101
512041022203
61220034001
7230003566
oct65322621
928310461
1014001553
1179a3635
124832901
132b93057
141c0686d
15136891d
hexd5a591

14001553 has 4 divisors (see below), whose sum is σ = 14453248. Its totient is φ = 13549860.

The previous prime is 14001551. The next prime is 14001563. The reversal of 14001553 is 35510041.

14001553 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35510041 = 75072863.

It is a cyclic number.

It is not a de Polignac number, because 14001553 - 21 = 14001551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14001553.

It is not an unprimeable number, because it can be changed into a prime (14001551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225801 + ... + 225862.

It is an arithmetic number, because the mean of its divisors is an integer number (3613312).

Almost surely, 214001553 is an apocalyptic number.

It is an amenable number.

14001553 is a deficient number, since it is larger than the sum of its proper divisors (451695).

14001553 is an equidigital number, since it uses as much as digits as its factorization.

14001553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451694.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 14001553 is about 3741.8649093734. The cubic root of 14001553 is about 241.0231378760.

Adding to 14001553 its reverse (35510041), we get a palindrome (49511594).

The spelling of 14001553 in words is "fourteen million, one thousand, five hundred fifty-three".

Divisors: 1 31 451663 14001553