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13455541 = 111223231
BaseRepresentation
bin110011010101…
…000010110101
3221022121112101
4303111002311
511421034131
61200222101
7222240661
oct63250265
927277471
1013455541
117660390
12460a931
132a31678
141b038a1
1512abc61
hexcd50b5

13455541 has 4 divisors (see below), whose sum is σ = 14678784. Its totient is φ = 12232300.

The previous prime is 13455539. The next prime is 13455577. The reversal of 13455541 is 14555431.

13455541 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: 14555431 = 111323221.

It is a cyclic number.

It is not a de Polignac number, because 13455541 - 21 = 13455539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13455511) 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, 611605 + ... + 611626.

It is an arithmetic number, because the mean of its divisors is an integer number (3669696).

Almost surely, 213455541 is an apocalyptic number.

13455541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13455541 is a deficient number, since it is larger than the sum of its proper divisors (1223243).

13455541 is a wasteful number, since it uses less digits than its factorization.

13455541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223242.

The product of its digits is 6000, while the sum is 28.

The square root of 13455541 is about 3668.1795212339. The cubic root of 13455541 is about 237.8484841710.

It can be divided in two parts, 1345 and 5541, that added together give a palindrome (6886).

The spelling of 13455541 in words is "thirteen million, four hundred fifty-five thousand, five hundred forty-one".

Divisors: 1 11 1223231 13455541